Chuck, or anyone, can you tell me if regular quarter horse bars or quarter horse bars are smaller or wider than semi quarter horse bars? I am confused a bit and some articles say the semi quarter horse bars are larger then QHB.
Those terms are pretty much meaningless. They are all dependant on who you talk to and on what day. I would recommend setting a day aside, load your horse up, take a knowledgeable (in saddle fitting) friend and visit as many tack stores until you find a saddle that fits.