I have always used two separate sheets for my jib/jenny tied with a bowline knot.When I first started sailing, I used a snap shackle and learned quickly that when the shackle gets caught against one of the shrouds, I had to go up front to release it.I never tried a cow hitch and was wondering if anyone here ever tried it. A cow hitch will slip with unequal pressure, which you will always have on your jib/jenny sheets. I figure that you can whip or sew a short section behind the hitch and that might prevent it from slipping. Or..... will the whipping twine/seizing twine cut its way through the line?If it can be done, it would sure eliminate some problems with catching. Anyone here ever tried it?Tony B