With the sale of extreme poles on at the mo I am guessing we may see a new range. Can you imagine an extreme pole which can clamp anywhere but be the same weight? I for one prefer clamping top/middle/bottom. Makes for a very quick pole and grit/dirt is not a real issue. The metal collars are an excellent idea. Slowed down the wear no end. My fear is the wear has been slowed down too much tho. I have a 5 month extreme pole. Used daily. Looks brand new still!!!!