Ive used the Feather Flex fawn for a while now and have pretty good success with it so far. Ive called in quite a few Coyotes, a few _REALLY_ PO'd muley does and one perverted young bull moose.
Best was the bull moose though, he walked up and nudged it with his muzzle, the decoy fell over and he stood there with this 'Ummmm what ya doin?'
look on his face for a few minutes.