Remembering that the bullet petal thickness adds up to match the barrel since there is a lot more variation in muzzleloader barrels than in cartridge gun barrels knowing what each combination takes it is wise to stay with the same petal thickness when you find a good shooting combination but sometimes you have to compensate for a difference like from .450 to .452.
The other thing about sabot some do not realize is what climate difference does to them here in the south where temperatures are warmer a good part of the year I use Harvester sabots because they hold up better in the heat when I lived in the North I used MMP sabots because they work better in the colder temps.