I have a Patriot and 20 years ago, shot a great deal of competition with pistols. I could never get the patriot to shoot worth a hoot. Always high, even though the sight was adjusted to the max. I came across a cheap Palmetto target pistol which looks and operates like an old Tingle pistol. I could do really well with it. Then I came across a home made Bubba'd pistol made or should I say cobbled with some TC patriot parts and a piece of rifle 11 inch rifle barrel and a home made two piece epoxied together stock. I won a lot of local matches with it. I suffered a hand injury (frx fingers)and couldn't hold it right and accuracy went to heck. I went back to the palmetto and won more matches.
Some folks just can't get used to the double set triggers on a TC Patriot. I also have problems with the sight picture on some pistols. Just not precise enough.
Being in condition physically makes a big difference. If you are not accustomed to holding a weight at arms length, a 3 lb gun will kill your shoulder before the first relay is over. For that reason a Tradition's Trapper is too heavy and too front heavy for the majority of shooters. Back when I did alot of shooting I actually worked my arm and shoulder to build up to holding my arm out for a few minutes without fatigue setting in. Now that I work a farm, my arms and shoulders are in pretty fair shape. When I first tried out for my college rifle team, I thought the coach was nuts when he expected us to run three miles after each practice. It took a while to set in, but being in shape helps with muscle tone for holding the rifle/pistol to aim. In addition, the better you are in shape, the slower your heart beats. When you are aiming and you see your front sight bounce with each heart beat, it makes a difference to have your pulse down to 60 or below.
A short hammer fall with a light weight hammer makes a difference in being able to hold the gun steady for follow through. Also a heavy trigger pull and sudden release often causes horrible friction. The gun should be set up for an even crisp trigger.
I've seen all kinds of pistols fired in competition years back. Some saw handle guns with left hand locks mounted on the right side backwards, they actually looked much like 1911 Gov't pistols. Other in line and box lock pistols, and underhammers. Even early short bolt action pistols. The problem with cheaper production guns is trigger set up, front heavy barrels, and poor sight pictures.
To make matters worse, there aren't many places where you can find examples of the various guns in one place so you can physically examines and hold them make comparisons side by side.
I'm in the market for a new target gun, but I will at least make the trip to Dixon's Muzzleloader Shop before buying. He probably has the best variety in muzzleloaders on the east coast.