Anybody else use these?

Mine worked great until it got cold. I finally figured out that it didn't operate properly below about 35F. Since my practice is usually 2-3 flights from the back porch I never had the problem except when hunting. No matter what rest you use you should test it after cold-soaking outdoors during hunting weather.

The factory is replacing it, free.

I'm using the old-tech but foolproof Mathews rest that came with the bow. Seems to work fine.

A friend used it in Alberta and had no problems. I believe it was close to zero.

The new QAD from the factory works perfectly.

I cold-soaked it in the freezer at -12F and it worked fine.

Been using it for weeks on the bow with nary an issue.