If he were gelded, he would get:
+2 in trainability
+.1 hands in height
And a significant boost in competition scores ^^ So it really depends on what you want to use him for! He won't receive boosts in any physical stats, however, although if an Appaloosa registry was created and he was registered as purebred (since QHs can be used in Appy blood), then he would have three additional stats. That's pretty much the only way to add physical stats c:
+2 in trainability
+.1 hands in height
And a significant boost in competition scores ^^ So it really depends on what you want to use him for! He won't receive boosts in any physical stats, however, although if an Appaloosa registry was created and he was registered as purebred (since QHs can be used in Appy blood), then he would have three additional stats. That's pretty much the only way to add physical stats c: