I just recently sleeved the pigtails on my Rev quad handles. I sleeved them to be quickly identified as left and right and to add strength to the pigtail. Is there any problem with this? Maybe you should know that I use these handles to fly my Stylus P.3. I get really good pull from that kite, and I like to spend time in the strongest part of the window. This kite destroyed another quad handle set I had.(thick line with knot in the tube)
See pic below. I used 130# (I think) Dacron to sleeve the factory line that came with the handles. Is there anything wrong with this?