Stress was a big part for me deciding to go back to air. I started my WC'ing after an operation on my neck - I had a lot of time at home recovering. I bought a whole load of new fittings and thicker tubing, but then struggled to get it all nicely fitted in the case. In the end I threw my toys out of the pram and swapped back to air. I quickly advertised all my WC bits for sale, and they went pretty quickly - if I hadn't have sold them all I would have tried again and again. Poking around in the case wasn't doing my neck any good, and I was getting pretty short tempered with it too! I do still fancy having a go again, but it would be purely as a hobby, and not for lower temps - as they are ok for me now.