HAH! I remember reading a horse-funny somewhere about how one rider won't get upset at the other for taking first, being satisfied with second on her "horse she trained herself." I used to think, with Chewie, "Yeah right, dude. I'll take my 2nd or 3rd, or near last for that matter. It won't be cheating, riding a trained one and getting credit for someone else's work."
And then I got Ransom. Yeah, he's trained. Yeah, someone else did the work. But the amount that guy has taught me in the few lessons I've had, in our (all but one) dozens of rides, it's immeasurable.
So nope, now I don't think it's cheating. I'll do my teaching & boasting on Romeo. As for Ransom, I'm going to now say, "I might not have taught him, but he sure has taught me."
There is a huge benefit to inexperienced rider on experienced horse! Got a similar story? Share it! Reassure me it's not "cheating".