I havn't tried the Knight & Hale hawk, but have used a Primos one for several years. I have had real good results with it especially midmorning. I'm wanting to get a new one, think it will be the Woodhaven laminated one though. That call just looks right.
http://www.woodhavencustomcalls.com
"A vote is like a rifle: its usefulness depends upon the character of the user."
Theodore Roosevelt
http://tscott.fws1.com
ONE NATION UNDER GOD!