There was some numpad emulation difference - the 86u didn't had it? Just check around GH.
Anyway, I was ready to try Realforce 86/87 with uniform weight, just to satisfy my own curiosity. But I couldn't find it anywhere, so I simply removed it from the wish list. Easy.
And now that I see how they're going with pretty colors and weird dials, I am somehow reassured my decision was right.
Good luck in your hunt.