I like a 2 reed ghost cut with a .004 reed on top and a .0025 (I think, not proph.) reed on bottom with a very light stretch.  I like this combination for softer calling, closing the deal kind of work.  I like it to have no rasp unless I really use some pressure.  This combination will produce those liquid sounding "whit" sounds like no other call I have tried.  It produces great soft clucks and yelps as well.