[QUOTE=Sakura Hill Farm;6477983]
The chances that a jumper-bred foal will succeed in UL eventing are far greater than an event-bred foal succeeding at GP jumping. And this is even more true when cross country is added to the horse’s repertoire–the jump tends to flatten putting the higher levels out of the horse’s reach. I am aware that, for every example of this, one can always cite the contrary, but this is a generally respected tenent.[/QUOTE]
I think this is a fairly complex question. A UL event horse has to have the right type of jump and the right gallop/canter for eventing. The jump must be forward, adjustable, efficient, and light on landings. The gallop must be efficient and able to comfortably maintain Advanced speeds while jumping. Again, the horse can’t be hard on himself in the gallop.
Given those parameters, there are many GP jumpers that wouldn’t make it as eventers and many GP jumper stallions that wouldn’t be smart choices if you wanted to produce an eventer. They could clear the jump height no problem, but the terrain, combinations and length of an XC course would not be suitable for them. Temperament is another serious consideration but I won’t go into that here.
Put another way, the GP jumper and the UL eventer are different animals. Sometimes their Venn diagrams overlap but that is not the norm. Good breeders understand this too. Some years ago, I contacted the guy who runs VDL and asked him if he had any stallions who he’d recommend to produce an eventer out of a TB mare. ‘Corland’ was his answer ‘because of the canter’. At the time, Corland was very young and not well-known, but he was 100% right. He didn’t really think any of their others were suitable for this purpose and told me so.
The Funnells’ Billy Stud in the UK breeds horses for both eventing and jumpers. They start all of them the same way, then point them to the more suitable discipline. The breeding between the two groups is often quite similar. I be curious to hear their philosophy on breeding and purpose.