High stepping horses-why?

[LynOlds@aol.com]

After reading the posts on high stepping horses, I was wondering what would 
make a horse be a high stepper versus a horse that barely gets his feet off 
the ground? I am very curious because I recently saw a picture of my horse's 
sire (Promotion, page 72 of the June issue) in the Arabian Horse World 
magazine that a friend lent me. This horse really has his feet up off the 
ground. My horse doesn't pick up his feet at all, just kind of skims the 
ground. So my question is why wouldn't my horse be more like his sire and 
pick up his feet more? Are there specific conformation qualities or training 
or what? I am not saying that I would want my horse to be a high stepper, but 
I am just curious as to why he is such a daisy clipper and his sire isn't. 
BTW, his dame was a Saddlebred and he is registered as a NSH as well as a 
Half Arab. He looks just like the picture of Promotion, except for the high 
stepping. Also, the magazine said Promotion is a Polish Arabian. Is this a 
good type for long distance or just good for the show ring? Any input would 
be greatly appreciated. Thanks. Lynette and Chance in Ohio.