I guess everyone has their own method. When I pull a sheath, I first feel for a femoral pulse. Then, while the sheath is still in, I have someone dopple a pedal pulse and I apply a small amount of pressure to where I think I'm going to hold and listen. If you are in the right spot...you'll hear it. When I pull, I hold my hand in a c position. My thumb rests on the iliac crest and my 3 fingers across the femoral artery. It is kind of hard to explain without a visual. This is the way our cardiologists and cath lab staff have taught us. Really, if you have your hand in the right place...2 or 3 fingers should be enough.