Weight or lack of it. I am now using c/f modular for low level everyday work, ok its not quite as fast to put up (but its faster to take down)as a telescopic but oh boy its a pleasure to use. Light poles, light brushes, light everything.
Mind you I suppose I got used to not using rollers so maybe you will get used to not using anything other than a roller. If you dont like rollers just put any old Bentley flocked brush on instead.
I find it interesting that Matt has made his Vikan cill brush really light as has riahehttrepur (you got to change that name again
its a sxd difficult to to spell backwards)