You know, I've often wondered... (Because I can't figure it out)

Some conforming items... don't fit the figures.
i.e. I have a (conforming) saddle for the Milhorse, which the creator kindly conformed in a position that is... wrong. It needs to be a little further back on the horsey.
BUT
Once it's conformed, I can't move it back. The XTran dial does... nothing.
Unfortunately I have already posed horsey and I don't want to start from scratch and move the saddle manually in the right position and parent it. I just want it to be a little further back, that's all. The rest is fine.
Any clue if there is a way to keep the saddle in that pose, but move it backward a bit?

Silke