Pit-stops?? To change all the stings on just one axe, and replace the pre-amp battery while I can get my hand into the sound hole... maybe 10-15 minutes if I had to...

Wraps around the pegs? Well, I also use the 'Middle finger at the 12th fret' guide mentioned above... and I end up with 2 or 3 wraps of wound strings, and 4 or 5 of unwounds... which is more than enough...

Tuning/stretching them... well, usually by the time I've yanked on them a couple of times and tuned 'em slightly sharp while putting them on, they are fine... if, during a show I have to replace one string, I have no problem at all 'tweaking' it up as it slackens while I'm playing... Ya gotta know yer gear ratios really well for that one though...

Quickest string change? Replaced a broken D string on stage with the band while singing chorus harmonys to "Rolling Down To Old Maui" being sung about twice as fast as it should be... Including clipping the end of the string so it didn't take someones eye out during the rest of the show...