After doing the math on the setup that I was considering, I came up with an arrow that weighed 788 grains now add weight tubes or weed eater string and that should put me where I need to be. The question is more like would my shoulder still hold up to shooting 100lbs. I have shot 100lbs or more on several occasions but I have never shot it for an extended period of time so I really don't know how well I would take it.

Protect your hunting rights, "Spay or neuter a liberal."