I felt like that not long ago. Over what felt like 10 days, Duffy's hind and neck muscles just went BOOM. Like when a pregnant lady 'pop's... her muscles just appeared. I was over the moon (she now looks horse-ish rather than girrafe-ish) but boy is she feeling it.. sweat? No thank, we're way too cool for that. Had a lesson last night, 25 minute warm up, hour intense riding. She was sweaty after that, but just wanted to do it, really up for it.
I have to admit I don't have the long rein problem aha, soon as I let her stretch she's mooching about.. sometimes looking for a roll
HOWEVER.. sounds like he's really coming along great... better a bit of fun then a push button.. wayy
too boring ahaha