High stakes pros use try to use the same amount of time to avoid timing
tells. This is usually using all of the allotted time and some of their bank before any decision.
In the micros time banks are often abused in order to tilt players. With poor internet being a possibility for some, but it's usually intentional.
Personally I usually save it for early breaks, or bubble/pay jump spots. Occasionally I will have zero info on a player in an allin spot and
sharkscope them in order to get an idea of what kind of player they are.
Hope this helps.
Do you use the timebank or you don't use it?