I have an FX 29" draw and 70 lbs limbs. I shoot with a no peep mounted under a SME hybrid sight. It works great. I am sure you have noticed the very small sight window on the FX
I echo everything buckskin73 says. The short sight windo presents a problem or two but be patient and you won' t be sorry.
I hope you have a proshop nearby. Mine cost me $12.00 last week for new vanes and another dozen nocks.