Just getting into this industry myself, the saddle I own is a black diamond rock harness. Definatly could be a little more comfortable, but in comparison to some of the cheaper tree harnesses it really isn't that bad. I've been in a few different weaver saddles as well (not sure of exact models) during my co-op and now at my new job, they're definatly built for a heavier load and have a nicer variety of attachment point, side Ds and whatnot. In short, the rock harness is lighter and cheaper, with probably mid-range comfort, but regardless to the harness type I have yet to find one that doesn't put my legs to sleep after hanging in it for a while, I can probably last 20 - 30 min suspended in the black diamond before I have to stand up on something and let the blood through again. (Also I find that you can control where the pressure is between your waist and leg straps just by changing your body angle while on rope. Making any harness tolerable.)