Changing body parts
So, I've recently bought the Float Unit optional parts and I see that they come with their own set of shoulders and upper thighs.
I know that replacing the arms and legs below the the arm and thigh rings is quite easy and doesn't prove any issue. If I wanted to add those newer parts I would have to make the replacement higher up, but those connection seemed to be tighter and that worried me a bit.
How tough is it to replace the upper thighs and shoulders on an already assembled sister? Is it safe to make those changes?
I'm a bit worried about it and just want to make sure before I make any mistake.