I am not familiar with the saddle brand you are talking about, but I have had excellent luck with Steele trees. So much in fact that I have 3 saddles with Steele trees now. I actually seek them out, ha ha!
Two of them are Saddle King Ol' Timers, like this: Ozark Saddle King Of Texas Ol' Timer Roping Saddle 1256-16 - www.scruggsfarm.com
They are supposed to have a Steele Equi-fit tree with Quarter Horse bars, although the gullet measurement on this one says it's 7 inches.
But it fits nearly any horse I put it on. I use it on both my Missouri Fox Trotter and her QH cross colt. The only one that it is not an ideal fit for is my Mustang who looks like he has a little draft in him. He does better in a Steele Equi-fit tree with FQHB.
But this saddle I swear fits both my Fox Trotter mare (who has that A-frame build that gaited horses have) and her son, who is 1/2 QH and fairly chunky. So it's been a versatile saddle.
I don't know if that helps or not, but I just wanted to give my 2 thumbs up on the Steele Equi-fit trees. I find them to be way more versatile than the ralide trees I used to have.