Not sure what's going on, but stam regeneration is all over the place. I'm 530cp, and use a stam NB, so having stamina on-hand is a must. CP is all invested into regen and stam usage reduction (tho the reduction is kinda worthless when you start to get .1 increments).
I use a stam/health regen food that gives a 439 regen. With only the food, stam regenerates around 2800, then it doesn't. I've had stam regen with the same food tank to 1300 per second while just standing still. Sometimes it'll hang around 1600 or 2500 regen. Goes w/o saying, you can't do much at 1300 per sec regen. This seems to happen to often, especially in certain areas, forcing you to stand there and not move while a boss pummels everyone. Sometimes heavy attacks help, mostly they don't. And regen and reduction of skills are priority, it's futile to dump points into the heavy attack regen.
Out of pure frustration tonight where it's constantly regenerating in the 2k range, I decided to make three, 201 reduction enchants and put them on both rings and neck. Now the stam regen bar fluctuates while doing nothing. i.e. get into a fight, stam depletes, fight over, stand still, stam surges, then drops, surges, drops, then surges. Is this a joke? And to make matters worse, I have to constantly pop custom stam potions to battle all this nonsense and even with it's supposed 20% regen boost for 47 seconds, the stam regen is still tanking to the lower 2k range when it should be around 2900-3k regen.
PLEASE FIX.