yeah thats a parallel limb compound, just like i said. the limbs in that compound work with the cams. to get that kind of force , youre going to have to use cams.
try all you want , but if you start at 75% , you wont get that 75% of power back out of it.
im not a profesional bowyer , but physics is against you.
start hoggin some wood and keep us updated , i wish you the absolute best of luck.
-hov