KNOWING he's n/h changes things.... but you have to wonder how many GRADE horses who came from the same lines and could potentially be N/H. You just don't *know* with those guys, and probably never know because you don't have a bloodline to research, and like alot of N/H horses, never any symptoms.

I'm not sure what I'd do really. I know alot of folks who ride N/H horses with no problems, but there are horses out there who are free from that issue entirely......