Right: final version completed

I've used all except the top two sections and it seems quite robust even at full stretch. I've jetted a Bentley brush (£5.99 inc handle from Homebase) and fitted it. I was using a cockeyed tape measure - the real length is more like 19'. I found an old 'Mr Longarm' that I never got to grips with and took off the bottom section. A few turns of thick sticky tape packed out the top of it till it fitted inside the bottom tapered section, giving me an additional 5'6" so now the length is 24'6" Even at this length it still feels strong and rigid. Allowing for the height of the operative total reach should be about 28-29'
I've sold it to one of my blokes who kept borrowing my 33' Hybrid, so I'll let you know what he thinks of it in due course.
I don't think I would want to use a modular for everyday work, I like the flexibility of a telescopic (adjusting height, that is, not the bendiness - I use a Prolong) but I can see the attraction of the lightness. When my poor old arms can't lift the Prolong anymore, I might buy another fishing pole
