well dan i started out on the french prussic and it worked well but after seeing the distel in action my whole system changed ...for the better and so did my climbing . it runs smoother it allows you to set your system higher just by pulling up on your climbing line ( the pully forces the hitch to losen and slide up the climbing line ) with only one hand which allows you to hold on with the onther one . i see it as the french prussic as the beatles (the 1960s rock group ) and the distel as cold play ( a 2003 rock group ) its the way forword and it makes for better climbers . Please dont get me wrong the french prussic is still a very good friction knot