I have a MK1 SLX from the first batch, and it is still used day in day out, had no problems with it at all. Got a couple of the MK3 SLX's, 30ft ones and they are no where near as good as the original. A lot more flex, and a totally different carbon weave to the original. Had a couple of the first and second sections replaced, clamps coming unstuck ect ect and the carbon that comes off them are terrible. The guy's like them as they used to use glass fibre before. If the new poles are of the same quality as the MK1, i would defo buy one, but if they are the same as the MK3, i would probably try something different.