if this is just coincidence it's really enough to drive me nuts
You should always know for your own info why you got a flat. I'm fanatical about airing my tires up before every ride. No pinch flats for several years. I paid for a shop to fix some flats when I first started and thought 5 bucks was a lot, so I started fixing them myself. It is not hard, though it still takes me a long time. I use kevlar belted tires. Fewer flats, almost none lately for the last year.
