I use them almost since their launch, they are no more than lgre Antivibe, which for me playing in Super 5A Nylon is quite comfortable ... Even if it substantially changes the balance ...
In terms of breaking sticks ... I confess that I always m'tonne ... I have never broken any baguette!! She wears at impact with the cymbals, ok, but the snap ... In short, I'm going to pretend that I do not hit hard ... (Even if it never does ... FORT order <> GOOD ... Ms. mtal over!)
Look well, play with the greatest energy ... But not in force ... Therefore, less to fall on a wooden vice, there is no reason to break ... NO!!
Once you've chosen your or your peers, purchase by "Fägt" (10 or 12 pairs). Controls on the net, it comes much cheaper!
I am not convinced of the effectiveness ultra ... As against the gain in weight is significant, but finished the game stick back ...