in a DAY 5 video they say to use a very heavy dubbing whirl and a magic tool clip to spin the rabbit hair in a loop around the body to eliminate the weight from the leather strip of the cross cut this also makes the fly sink better
I do basically the same thing, only instead of an expensive Magic Tool, I use a cheap office supply binder clip. Works great! The other benefits of using a Magic Tool or binder clip method instead of just wrapping crosscut is that you can clamp flash in with the rabbit strip or mix more than one color of rabbit strip. I like to clamp the crosscut and the flash (I like holographic ice dub), trim the hide strip off, put it in a dubbing loop, spin and wrap. Killer pattern either way!