Here is my question... I started taking jumping lessons in nice barn (I like the instructor and all) because I can't ride my own mares for over a month already. However the horse I use is not round, doesn't come on bit, and has no muscles developed what so ever. Which means no balance and no good transitions either. I keep asking him for more roundness (and he gives it for couple strides from time to time) as well as work on transitions (even though they are as rough as they come).
His owner and lesson riders are mostly kids who let him wonder around with head in air and loose reins and do whatever he wants to do, so the fact of me asking him to actually work really upsets him (to the point he bucked yesterday trying to resist).So my question is will I really learn something on such a horse? I'm not afraid of bucking nor I going to let him do whatever he wants to, but given the fact I ride just once a week I highly doubt he'll develop those muscles. And I don't feel very confident to jump a horse, which doesn't have a balance or muscles for that. Or it's still OK and that's how you learn to jump? I'm fairly inexperienced with lessons, so have no idea if it's a norm.