Not sure why you can't edit-maybe try reporting the post and asking if a moderator can add your requested info.
In any case, I have the 7000, 7500, 9000, and 4MX. I can probably do the 7000, 7500, and 4MX this evening. I also want to try the regular(non Twin-view) 2MX, and will report back. Most of my recent benchmarks have been in GigE, which is 2x. I'll try a couple in the Quicksilver(4x) and see if they get a recent score. I suspect that most of these lower performing cards won't see a performance advantage in a 4x slot, as I doubt they're even saturating the 2x.
I have a 4Ti 4600 that unfortunately is dead-I'm keeping my eyes open for another one for a reasonable price. I also have the nVidia Quadro 4 that's more or less equivalent to the 4600 and will get around to flashing one of these days.