Check the limbs!
From my experience with a few bows, check the limbs when you hear a "tick". You could have a hairline crack, as I did with a Champion Scorpion, or a little H crack developing, as I did with an old Bowtech dual cam. Not saying the Martin limb is likely to have a problem, but if there is an issue, it is one thing that can cause major trouble. If you check carefully and there is nothing wrong, then go on to checking other sources of noise. Could be the limb against the roto cup, or something in the cam/module too. BTW, with the Champion, I had to get a magnifying glass to see the crack, but when I took the limb off, the crack was all the way through to the bottom surface of the limb, so the damage can be hard to see. Good luck finding the problem.
