Well I was a bit vague in my last post, but I timed the time between shots (yes I was sitting next to my screen with a stopwatch *my parents thought I went nuts an called an asylum*) and the tim there was at this moment was about 10 minutes, you are right when you say they recharge faster when you increase the numbers, but what I was trying to say is that the amount that stands there now (for ex. 2000) is about 10 minutes, if I make it half (1000) it must be about 15 minutes (2000 = 10 minutes, then 0 is 20 minutes, 10 minutes plus 10 minutes so then 1000 must be 15 minutes 10 minutes plus the half of ten minutes <5 min> equals 15 minutes