[QUOTE=Bensmom;2508770]
FWIW – I’ve got three TBs that are all very different in conformation, but all very good at the sport.
My NZ TB has surprised other riders as well as the vets at rides with his recovery rates – in fact, at his fittest, when we vetted in last time, his intake pulse checker wasn’t sure he was still alive :lol: as his resting was so low! :yes: He has done one season and at the last LD he completed, pulling on me, I was advised that it was time to move him up – he vetted in at the end looking like he had just been on a 15 minute stroll. He is a lean 15.2, with long, stringy more slow twitch muscles, so he’s ideally suited.
The odd thing is that my big TB (16.2 hh with a barrel that required a custom made 58" girth), who has done some training but not a ton, has a nice low resting and can go out and trot 12 miles and pulse down exactly with a small arab who was fit for a 50.
He’s so big, we just knew he was going to have a hard time with the vet checks etc. but he surprisingly has the systems to do well, though they are in a large, bony package. 
The other little TB has more of a bunchy QH body style, but a huge heart and respiration system and can go forever once fit. He has a bit of a harder time avoiding the beer belly syndrome, but once he’s fit, he’s amazing.
So, I think it just depends – good heart, (size as well as theorectical), good oxygen delivery system, and good bone, all of which my boys have.
The “want to” is the most important, I think, though.
LMH – I hope you are having fun! I’ve been doing LDs for only a season, and am going to keep eventing, but I like it enough that my new filly was chosen for the fact that she is ideal for both endurance and eventing.

libby[/QUOTE]
bensmom that is why people over in the states are looking for new zealand tb’s because they can do anything and also because they are at grass all year round.gothedistance what you say is true but when it comes down to it a arab at a canter can be beaten by a mustang and appy going past it in a trot.