it was me who made the harris slx lol.
my username on other forums is dune19670.
the clamps on the pole did work ok but i found them to be a bit awkward to use, so thats why i cut the sections down and made it into a mini pole, and to be honest i dont use that either, i still prefer my 17ft xtel for ease of use.
the clamps had to be packed out with shims of metal and slots cut in to the pole to allow the clamps to compress, then every thing was araldited together, worked fine and is still together to this day.