Yes the 3FU and Lutheran views are similar in some ways
I've been a lurker for many moons on this board but am finally jumping in - probably to my detriment as most on here are errudite than me. But here goes:
As a Lutheran who came from a Continental Reformed tradition I think that there are greater similarities there than some would like to admit. Admittedly most reformed/presbyterian practice is Zwinglian in theology and almost certainly in practice. That said, I do think the distinctions of the actual Lutheran position are more pronounced when compared with American Presbyterian tradition (Nevin excepted of course).
Also, in my experience you can ask a number of lutherans, or a number of reformed as to what is the confessional position and receive a wide variety of answers, some more accurate than others. Thus, my first suggestion would be to go to
www.bookofconcord.org and read what the Lutheran Confessions state on the supper. From there you should be able to deduce the similarities and differences. (I do think you'll find a clearer exposition of Lutheran Theology in the Epitome and Solid Declaration of the Formula of Concord. The Augsburg Confession and Luther's Catechisms are short and trite for good reason).
To illustrate my point on the similarities take a guess which of the following is Lutheran and which is from a Reformed Stalwart. Both were written at roughly the same time (give or take 10 years or so):
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Quote 1:
"We begin now to enter on the questions so much debated, both anciently and at the present time--how we are to understand the words in which the bread is called the body of Christ, and the wine his blood. This may be disposed of without much difficulty, if we carefully observe the principle which I lately laid down, viz., that all the benefit which we should seek in the Supper is annihilated if Jesus Christ be not there given to us as the substance and foundation of all. That being fixed, we will confess, without doubt, that to deny that a true communication of Jesus Christ is presented to us in the Supper, is to render this holy sacrament frivolous and useless--an execrable blasphemy unfit to be listened to."
" Meanwhile it should satisfy us, that there is fraternity and communion among the churches, and that all agree in so far as is necessary for meeting together, according to the commandment of God. We all then confess with one mouth, that on receiving the sacrament in faith, according to the ordinance of the Lord, we are truly made partakers of the proper substance of the body and blood of Jesus Christ. How that is done some may deduce better, and explain more clearly than others."
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Quote 2:
21. Hence we hereby utterly [reject and] condemn the Capernaitic eating of the body of Christ, as though [we taught that] His flesh were rent with the teeth, and digested like other food, which the Sacramentarians, against the testimony of their conscience, after all our frequent protests, wilfully force upon us, and in this way make our doctrine odious to their hearers; and on the other hand, we maintain and believe, according to the simple words of the testament of Christ, the true, yet supernatural eating of the body of Christ, as also the drinking of His blood, which human senses and reason do not comprehend, but as in all other articles of faith our reason is brought into captivity to the obedience of Christ, and this mystery is not apprehended otherwise than by faith alone, and revealed in the Word alone.
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Of course, the first is from Calvin's Short Treatise on the Lord's Supper and the second from the Lutheran Formula of Concord (Epitome). BTW, lest I get pounded on the head Calvin at other times sounds more Zwinglian (see for example the document he signed to unify with the Zurich magistrates, however, Calvin also signed a revised Lutheran Augsburg Confession that was pretty clear on the "real presence" in the Supper). However, as the Short Treatise was written for the sole purpose to flesh out his position I'll rely on that as being a more accurate (and less politically motivated) reflection of his position.
Simply put, I think the difference between the Calvinians and the Lutherans really is smaller that those in both camps would like to make of it. I think Michael Horton (whose work on the Lord's Supper is a supurb example of the true confessionally reformed position) says it best when he points out the distinction between the two is really one of Christology - and whether we are carried up to heaven to feast on Christ or whether he condescends to our level . Naturally, this thread could degenerate into a detailed discussion of Chalecedon, Nestorianism, etc. etc. etc.
I do think that some Reformed systematic theologians though have done a good job by also tying the Lord's Supper to the covenant (agan, see Horton's God of Promise).
In summary, I do think there are more similarities to those of continental tradition (after all Ursinus was actually a student of Melanchthon) than those in the Presbyterian confession - but both are effectively in large part Zwinglian in their American churches (I think one can except many in the URCNA from that characterization).
Anyway, here is Horton's quote from
http://www.modernreformation.org/mh97means.htm His article here is a great exposition on the Supper and the differences and similarities between the two traditions:
"Zwinglians and Roman Catholics are the only ones who deny mystery: the former, by reducing the Sacraments to mere signs and symbols; the latter, by arguing that the sign is no longer united to the thing signified, but replaces it! Lutherans and Calvinists embrace mystery, though at different points. While Calvinists ask Lutherans how Christ can be physically present at every altar and still be said in any sense to have a human body, Lutherans ask Calvinists how they can honestly say that they are really feeding on the true body and blood of Christ in heaven, without identifying this with a physical mode of eating. For centuries, the difficult business here for both parties has been accepting each other's claim to be truly feeding on Christ according to his institution. But at least they are both claiming the same act and effect, even if they differ on the mode of eating. Here, both concede mystery, a wonderful exercise of the miracle-working Savior still at work in our world, and this is at least a good place to start."
P.S. Personally I think the "locality" issue is moot when one considers the extra-dimensionality of God. At that point, whether here or there, it doesn't matters so much as what is actually being conveyed in the supper. Both Calvinians and Lutherans would agree that what is conveyed is "Christ and All His Benefits"
Chad Hamilton
Peace With Christ (LCMS)
Fort Collins, Colorado