I used one this year Ican. I had a nice 4 pt. come down the trail, saw my Renzo and ran away. Went about 40yds. stopped, sniffed the air, and came back only to see it again and run off again. After this went on for the third time i took a clear shot at him at 50yds. and guess what? MISFIRE! ..I think the deer and myself were ready for a breakdown... Hope to have better luck with it this year. I believe i need more practice with position and scent control of the decoy.