Haha! Usual gang commenting, love it!
Saying a brush that is just over 200g over the standard weight as 'unusable' is a pretty uneducated statement. Lot of other factors involved - pole weight, height of cleaning, pole composition, etc relate to the usability and cleaning effectiveness as a whole. Anyone can make a lightweight toothbrush style brush, that takes twice as long to do the job as a heavier one with more surface area/bristles, etc. Is that real efficiency?
Far as I'm aware not one of you guys have used The Wedge...? Am I right?