I've used a jake decoy with a hen and had gobblers come up to the jake. I've had a lot of success with just a single or a pair of hen decoys. I've never had success with a full strut decoy alothough I've only used one in the past three or four years and not very often. In all, to me it comes to the call and knowing when call softly or be agressive. But there have been times where I just couldn't get the strutter to come in all the way with or without a decoy. The gobbler expects the hen to come to him and we are trying to make him come to the hen so there will be hung up birds.