I've noticed this before, but didn't realize what all would cause this, but I've noticed that the tension bar pulsates at different speeds, like if you got a negative penalty for example, all your tension's gone, and the little bit of tension you 'would' get, the bar's stagnant (sp?). But if you're on a offensive roll or something, it'll start to pulsate faster, I'm not sure what the exact criteria is to do this, since I noticed that IB-ing a few times causes this same fast pulsating effect (assuming the fast pulsating means you have 'tension frenzy momentum' or whatever)
My stupid question of the day is: Does anyone know or have some kind of data/mook thing that breaks the tension frenzy down and states how much offense/defense or whatever (probably character dependent too) it takes to acheive tension frenzy?