Ugh! I'm nearly out of 505 and since Hancock's went under, there's no place near me to buy it. I guess I need to check out what Walmart and Hobby Lobby has available. I doubt I would be quilting if I had to pin or sew-baste my quilts. I love 505!
Regarding the propellant leaking out; that's a disturbing thought, but I have tried to spray other products (like hair spray) that have sat around for a few years, and they seemed to have lost their oomph, whether I soak the nozzle or not.