Been doing guttervac's for about a year now and have always used alloy poles. Bit of an arm ache at some angles but not massively - however where the clamps go are a bit worn now and I tend to find myself tightening up the bloody things more than actually doing the job! I was just about to buy some carbon fibre poles (with clamps) but had read on a site that they were only slightly lighter? Didn't want to spend £500-£600 on poles if there isn't much difference in weight. Also, anyone know where I can buy they clamps for the alloy poles from?