The Realforces that I've taken apart were more like this:
Although there was some variation. Like 30g being used instead of 35g, but you wouldn't be able to tell under normal typing. I think that diagram above is pretty accurate for all the Realforces I've modified: a 86u, two 87u's, and a 108udk
DISCLAIMER: I didn't use any measuring tools to figure out the weighting. I just took the keyboard apart and had all the domes out in front of me to compare how they felt relative to one another.
ANOTHER EDIT: I also wanted to add that I really liked the variable weighting except two things: it sucks for gaming (WASD different weights) and, like you said, the modifiers are the standard 45g weight. Both of those things were enough to make me go uniform.