Mightymite--your facts are crossed on this one. Like Keyway said, the Whammy works connected to the UP cable, so at full draw, the restcord tension on the cable is relaxed. The rest trigger goes up. When the bow is at rest, the trigger is pulled down against the frame of the rest.

I installed one on my Guardian a week ago--it works really well and there's no sign of vane contact--HOWEVER the one draw back with the rest lies with the launcher fork. It is NOT insulated and therefore while drawing the bow the contact from the launcher/arrow makes quite a UNWANTED sound--will spook any deer up close. NOT GOOD--Spot Hogg should have really addressed this issue.
Nevertheless I've putsome shrink tubing on the forkand tamed the noise quite a bit. I'm now trying to get some of the GIBBS forktubing for a permanent fix.