John,
It will be interesting to hear your impressions of the MM De Capo I. I've heard two different VMPS speakers (the RM40 and 626R) and was mightily impressed by both, especially when you factor in price. I guess the 626R is the speaker that is more comparable to the De Capo I. I could live with either, though I think the bass of VMPS is certainly more extended and the highs may be more airy. They don't image quite as well as the De Capo I's and the midrange of the De Capo I's is definitely more involving IMO. However, your comparison will be more meaningful because I've only heard the 626R in a friend's system, so all the factors that could be resulting in the different sounds I heard could be system, room, cable factors, etc.
Michael