I have been using a Circle Y Parka and Trail, semi-quarter tree on him. I actually had it professionally fit to him as four year old. What these pics don't show is that his shoulders are built like a friggen tank and are actually wider than his barrel - yes, he is a bit, um, fluffy, but he has a better attitude that way. I tried to find a rib a couple months ago, and failed!
I know his head is down, but you can see how wide his withers are.
You can see him move a bit in this really bad video.... click on the pic and it will open in a new window. It was taken the same day as the pic above. He is not gaiting in it, but you can see his bulky shoulders.
His dad, who was full Saddlebred, looked just like him. A friggen TANK of a horse - his mom was an Arab mare. Here is the only pic I have of his sire, Norsk's Wheeler Dealer.
The dry spots under the saddle guarantee that my saddle does not fit. I am quite sure that if he were not already white, he would have white hairs from it.
We ride him in a medium port western curb with a roller and grazing shanks - but we are going to have to switch for a bit to something with some stopping power as he has been taking off with my daughter lately - I am looking for the same mouth piece, just straighter and longer shafts. The bit is only engaged for collection and emergency stop - all other commands are leg and seat pressure - yes, I can run a barrel pattern at a canter bridleless. As there is almost never any bit contact, he never tosses his head.
The head tossing happened while my daughter (20 years old) was cinching him up. He was ground tied in a halter and lead line. Everyone who was in the barn looked at him, as it was so out of place for him to do, and commented that he said 'ouch, that saddle hurts'.
As for an english saddle - um, no. I use a saddle because my balance and leg stregnth is not good enough to ride bareback. I need something that will keep me on the horse when my since of verticle tweeks one way or the other by ten degrees - which it does all the time. I also need a saddle horn to pony the filly off of when we go trail riding. She has another year before she is going to be started under saddle so has another year of being ponied.
I actually prefer to ride in a Western Aussie, but he quit liking that saddle about four years ago. Saddness.