Re: 36 Caliber load
35 grains with a 36 is pretty much going the speed of sound or better even in a 28 inch barrel.
The best load for your gun depends on the twist and shape of rifling. Many barrel makers use a faster twist in small bores. With a slow twist like 1:72, a higher load would be more desirable to keep the ball spinning. In a faster twist, like 1:48, a lower charge will spin the ball just fine. Most pistol barrel makers would put a 1:22 twist in a 36 cal pistol and the ball will spin fine with a puny charge.
Frankly, I like shooting, but not enough to waste my time, shot and powder experimenting with with hot loads in a fast twist barrel,
If the barrel is a faster twist like 1:48, 35 grains of 3f or even 2f powder is probably too hot. Something closer to 20 grains would likely prove more accurate.