Thanks for all comments guys. First of all i have used a CLX Pole myself for 2 years and oh my god what a crock of S%@# it was. After using an SLX Pole i could never use a CLX pole again the difference is absolutely huge. If i wont use it, theres no way im making my worker use it either. Hes a good worker and considering hes worked for me for almost 3 years now full time i dont think replacing his pole for £300 is that much of a big deal, but it is interesting to see what you guys would do.
I think i will aim to replace the pole every 2 years and then do what Jon does and chuck it on ebay, or failing that i might keep the pole just for spare sections for emergencies etc...
He is heavy handed but i've seen him clean he isn't that much more aggressive with the pole than i am, maybe he is just over extending the sections too much, ill make sure the stop tape is replaced much more often and the poles are maintained better. I can admit that i have not looked after the poles enough, sometimes they arent cleaned for yonks and i can feel the grit building up!
Cheers guys.