FX Impact ft/lb range question

Thanks guys. From those numbers it's not as wide a range with just adjusting the power wheel, you also have to adjust the valve too, but I can probably live with that. I use low power for backyard pests and high power for hunting, so adjusting before a hunting trip shouldn't be a problem. I was hoping just the wheel could be adjusted, just make it simpler, but if not then it doesn't sound like a big deal.