Jay,

The most common grease used is white lithium. And it only takes a very small dab between the limb and the cable washer--not just on the axle. I also agree with the other guys in that I would have shot the bow for 1/2 hour or so before leaving the shop with it.

Although I've never encountered a problem with the release I wouldn't rule it out.

Just thought of something. Depending on how much clearance you have maybe your cable guard rod is rotated too far and putting undue pressure on the limb tips. Just something else to look at.