RE: Decoy or NO Decoy
If you use a decoy, it should look good. Those el-cheapo cookie-cutter foam generic decoys make better car washing sponges than they make a good hunting aid.
Flambeau just introduced a "Master's Series" jake that I would shoot if I saw it. It's that good.
Like Treeclimber, I also had my decoy shot, and it was a very scary ordeal - you must use it wisely, and be wary of other hunters.
I've killed a lot of birds off my decoys, and I use them quite often. Would the birds have come in anyway?? maybe. Who knows?
If you do go for the decoy, just make sure you get a good one, or if you get a cheapo, it will be fine as long as you paint him up really nice. Give that head some really bright coloration (Bright red waddles, blue head and a white crown) Also give him a coat of glossy glack paint on his chest and back, along with some irridescent glaze if you can find it (look at a craft shop for it).
Trust me, if you think it looks fake, they will too. Turkeys' eyesight is very keen and sometimes it takes a little more to fool 'em, and you want every advantage you can get.