I haven't had any issues with using C02 and leaking air. I had a front tire I inflated using CO2 and it was still inflated to max a week later. I'm wondering if it's more damage to the tube or a pinch flat than it is the CO2?
Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in sideways, champagne in one hand, strawberries in the other, body thoroughly used up, totally worn out and screaming: "Yeah Baby! What a Ride!"