Well, you can allways wait to merge them untill you are finnished with all the features you want both sides to have But I am pretty sure you can change both sides after you have merged them as well, in some wayOriginally posted by Annaxx
But when I merge them, I lose the ability to manipulate both sides simultaneously. Basically I wanted to use it for blendshapes on a merged head, so that I could save time by doing only one side of the head.