My advice would be to look at your arrows. Do they have a brass insert up front or aluminum? If it is brass, I would shoot the 100 grain broadhead. If it is aluminum, I would go with a heavier broadhead like a 125. Shorter arrows benefit from increased FOC.
Better quality crossbow arrows typically have a brass insert up front. Something to look for when you purchase some more.
I support all hunters, regardless of weapon or technique!