Lol it doesn't matter how big your arms and shoulders are its the tendons that take all the hammering day in day out ,the heavier pole even slightly heavier will cause more strain. IMO I wouldnt waste money on a cheap pole unless you really have to,I reckon a pole like an extreme is worth another 2-3 houses a day at least in the strain it will save you. I was working the other day and had a laugh to myself thinking about the old orange and green fibreglass poles we used to use lol