I have a shoulder mount of a 12 pt that barely scored 125", shot him a long time ago and at that time was my best. Sure enough, I shot a bigger one the next year and a dozen since. I really prefer Euro mounts. I also have a lot of racks attached to the skull plate.

I don't want this shoulder mount on my wall any longer, it's being replaced by the one I shot this year. Would a taxidermist, or anyone else, have a use for it without the rack, as in mounting a different set of antlers to it? Is this done?

Nope

You might find a small shop that may want it. I gave one to a guy just starting out several years ago.

I might want it. Ive been considering having a deer mounted that the rack would come off easy enough. Then I could put other racks on temporarily. Im always trying to learn to field judge score better and to teach others. I have several sets of sheds I would hope to switch out. I wouldn’t expect it to be anywhere close to not being able to tell it wasn’t correct.