I have the Hoochie Mamma and use in the lost cow tone mostly. However my favorite and most productive cow call is the Primos Lead cow/calf. I use it in conjunction with a hootchie mamma and my bugle tube. It is very easy to blow, tone vary and intensity is among the best I have tried(seeming to carry well in valleys and timber areas) The lead cow has worked great for bulls and cows a like for myself. I sucked a single cow from the opposite river bank to within 20 yards last week and it helped to draw out and harvest 2 nice sized bulls (who were in post rut phase at the time). I think these 2 or a hoochie mamma and a diaphram are a great combo. Like mentioned it is my experience too the sound of more than one cow works better than just one call all the time in luring elk to your location, especially when the preesure has been on them for a few days.