I have mixed emotions about this. It can be annoying, but, that can be good. It can make you see less hands, that can be bad or good depending on the player and the way their luck is running. If I run the clock, I generally like to run it for the same amount of time before each decision, as not to give away my hand. (We all know most snap calls are a draw). In the end if I'm playing with players, I respect I try not to unless we are close to the bubble and I am very low on chips at a looser table. Then again, when in Rome.....