I disagree emphatically with treestyler on this one, but I respect your opinion. I do believe there is a place for mechanical devices in SRT, but for me they are simply for ascent, once aloft, its hitch and wrench all the way. I will go so far as to say I have no need to ever climb DdRT again. I have worked a hitch on SRT in the rain, the snow, and every condition in between, and I have yet to see, experience or hear of something that in any way makes me doubtful or skeptical of a hitches value in SRT.
Quote from treestyler,"I'm not saying that working SRT with knots is impossible I saying it is more likely that this can cause failure to the climber and it's system especially when he doesn't understand what he is doing out there and wich gear is suited for the job."
I believe knot and hitches in SRT are in fact SAFER than mechanical devices, which MUST BE BACKED UP WITH HITCHES ANYWAYS. I do agree with the last part of your paragraph quoted above, it is absolutely the climber's job to understand the components, limits, and capabilities of the climbing system, and lack of that knowledge can most definitely lead to injury or death.
Regardless of differences, I respect your position and opinion, and am simply arguing mine, no hard feelings.