Attached Link: http://www.shininghalf.com/desprit/downloads/V3Tools.zip

This is Miko. Miko is very short (body scaled to 87% from default V3 size). Her legs and arms have also been shortened by turning the "stretch legs" and "stretch arms" dials negative. I tried to put the catsuit on her. Because her body is scaled down, I first parented the suit to her; then when I conform, it inherets her scale. Nifty, huh? (Restore Figure would also cause it to inheret her scale once it is parented to her body.)

1. Ew. Even with the body scaled, the V3 catsuit doesn't conform so well. It's arms and legs don't match, they're too long.
2. I added Stretch Legs and Stretch Arms dials by copying the valueParm dials from V3's body into the catsuit's body, then applying the ERC_Inj pose from my nifty magic toolkit. (I have one for M3 as well; just change the V to M in the URL.) Looks like it made the problem worse. The arms and legs are shorter, but they don't line up while conforming. Stupid Poser bugs.
3. Forget conforming, it's back to the old parent-and-pose technique. I saved Miko's pose to a pose dot, went to the catsuit, conformed it to nothing, then applied the pose dot. Yay, now it fits!