Zane is a QH/Missouri Fox Trotter cross. That wasn't my doing (I bought his mom and didn't know she was pregnant), but I have no problem with grades. And Quarter Horse is a good a cross as any, probably even better than most.
The only reason I thought it was odd is because they were crossing non-gaited to gaited, and if I personally was breeding a gaited mare I would choose a gaited stud. But hey, it was their breeding operation, not mine.
Zane is only a year old, and doesn't appear to be gaited at this point.
And to all the folks who think Quarter Horses should be kept "pure," the breed has only existed for what, maybe 60 years? So they come from a recent mixed ancestry anyway. Not to mention all those TB's they mixed in there.
I love purebreds, but I also love grades. I think both are great.