Been using a Roperunner and finally am replacing the wear items . While I love my Ropewrench with an Icetail Michocan the Roperunner is hands down smoother on descent and I don't have to disassemble before installing on my climbing line - just slide up the tail end. I use it both on ascent and descent as well as adjustment at the top. This also provides primary life support when using in conjunction with the Drey.