I would be very interested to see a league table of the fastest pitstop each team has managed so far (perhaps each race weekend, if that data is available?) I imagine there is a lot of pride between the teams resting on who comes out fastest in this respect.
Given their importance to the outcome of races (beyond even the several seconds that can be saved, they often determine track position over a rival), you would think it is worth all the teams’ time drilling them until they are militarily precise. Several teams do not appear to do this to a sufficient extent.
The other issue that I have noticed having an effect on the overall pitstop time is wheelspin. With the cars having no traction control, it is up to the driver to feel the traction on his fresh tyres and accelerate as cleanly as possible up to pit-lane speed. Hamilton suffered quite bad wheelspin getting away from his stops in both the incidents with Vettel in China and Alonso in Canada. Arguably in both cases it lost him the place.
Lastly, isn’t it time the measurement of pitstops became more accurate than 0.1 of a second?