What do you do for conditioning?
Snickers and I shoot for 20-25 miles each week. We do a lot of medium trotting and slow cantering. I'm no expert at this, but he's doing well and his heart rate isn't high (about 90bpm immediately after working, but back down to 60 bpm within ten minutes). We go for two longer rides, one of which includes small hills at a ATV park (other than that it's pretty flat around here), and one short one, with plenty of rest in between. We're only conditioning for an LD, hopefully at the end of May, and my vet recommended to condition faster than we plan to ride. He's the vet that does the vet checks at most of our rides around here :)