Recently purchased an older Hoyt Invader with Command cams. Bow is about 40" axle-to-axle, 65# @ 29" . Arrows are 2315 cut to 30" with 125 grain heads. Shot with a mechanical release. I have not fine-tuned the bow yet but arrow flight looks quite good.

However, shot noise & vibration are terrible. Ever plucked one of those door-stoppers made out of spring wire with a rubber tip? Sounds like that, maybe louder. After 20-30 shots my bow arm hurt from the vibration (not recoil or " kick" ). Shoulder & elbow don' t hurt, but bicep, tricep & forearm muscles do.

I have rubber catwhiskers installed, and Limbsavers. Also a stabilizer, though it' s not one of the " active" types. All accessories are tightened well. Limbs, riser, etc. are in good shape, no cracks or anything. The bow is a 60-70# model, so the limb bolts are backed out some, but not excessively.

Two specific things I' m wondering about.. the cams appear very well synched, but is it possible they' re not rolling over as designed (timing)? Is there a reference point by which to judge proper position for these cams? Again, the two cams are rolling over in unison, very well matched, but I wonder if they' re not properly positioned from the start.

Also, the cables are fairly lax at brace; the string very taut. I know this is is by design & the cables bear more at full draw to achieve let-off, but the difference seems more severe than what I' m used to. It may be in my head.

I would appreciate any advice or suggestions, particularly from those who have experience with setting up Command cams.

BTW, I didn' t buy this bow to slap together & hunt with. I' ve been an archer since about 9 or 10 years old. Coming back to compounds after an aborted attempt at trad equipment. Beautiful & great fun, but had to be honest that I don' t have the necessary practice time to attain/maintain proficiency with that type of equipment. I understand it will take some time to knock rust off the shooting form & fine tune equipment before I' m ready to hit the woods again.