India 42.. The point I was making was this..extreme sports, by definition, require extreme degrees of skill, concentration and prep. Take aerobatics at competition level..the CX roster in NO way allows sufficient of the above to produce the goods at top level. One can prepare in theory but the practical exposure on an airline roster is completely insufficient. Same with extreme diving. The tech elements that enable the theory levels to be met, mixing gases etc...fine. BUT you have to get wet...again and again..more than a line roster or any other roster permits. even the full time guys..Rob Palmer/ Pete Scoons etc in the end couldn't stay on top of their game. Dave was as pedantic use as they get, highly organised and totally committed...but his wet time was low. RIP DS.