said by Jerm 
:For better (in my mind) or worse, PowerBoost doesn't exist (yet) with Charter. This is actually okay with me because it won't throw off speed tests or allow them
any excuse not to give me full bandwidth. In my opinion, PB becomes a detriment in heavily loaded areas because even though the "peak" speed may seem acceptable (on speed tests) the actual sustained performance can be much less.
If you're on a oversubscribed node, powerboost doesn't activate. I know because im on a loaded node and have very seldomly gotten PB to activate.
