I like to do one long grunt fallowed by 3 or 4 short grunts. Last year I called a 6 and a 8 to me but this year I've had no luck with buck grunts. I like to use doe or fawn calls alot cause they amost always work for me calling in a deer. I've never called a buck with those ones but if I go for too long without seeing deer I use them to get the does over my way. The fawn call works the best for calling does and fawns over.