I used fishing poles after using fibreglass telescopics for a month. They are mega light, you'll never get a telecopic down to the weight of a modular. For low level stuff you could be using just one section which weighs practically nothing. Price is another factor - fifteen to twenty pounds for a pole is sooo cheap.
Then i started breaking sections, treading on them, dropping them, walikng through gates with one at the wrong angle that kind of thing. Left sections behind several times too sticking out of customers hedges on the other side of town :

So, i went back to telecopic carbon (slx) expensive in comparison yes, but far far stiffer, adjustable on the move, indestructable and never leave a section behind.
I tried a Zensorflex again a few weeks ago and can't use it because i dislike the bend in it so much now. I also can't be bothered with leaving unwanted sections all over the lawn.
If you want the best most practical pole then go for a carbon telescopic but if you want the lightest cheapest alternative go for a fishing pole like the Zensorflex, Gangsta, Energie etc etc.