No, I haven't tried the new skyblue poles unless they are the ones I already used but, in my opinion, the fishing poles are a better bet. The flagpoles are designed to take a bit of cloth on the end that flaps around in the wind. The fishing poles are designed to take a 20lb plus fighting carp. I noticed a vast difference in quality. Fully extended the pole does bend a bit but, again in my opinion, it's not as bad as an exel extender pole and the weight difference is astounding. I really have no problems using it all day. I have used a vikan brush on the pole and even that was not too bad. As for the thread, I use a normal broom handle that fits the plastic adjustable goose necks and cut the fishing pole down until thee broom handle will fit into the pole. I glue about 6 inches of the broom handle into the pole and then wrap a couple of turns of gaffer tape around the join. I drill the hole for the brush hose through the pole and broom handle 'cause it makes it stronger than just going through the fibreglass. If you want to know anymore just ask.
DJ