Just a thought......
If you look into the Inert gas gradients, deco schedules etc 50% starts looking very appealing. That aside, theres two simple reasons I teach people to use it;
1. Easier to get fills at full pressure (no one dies of too much gas!)
2. If you blow your bottom gas for any reason, its a lot easier to get to 21m, than 6m.
Still... everyone has their own reasons.....
PS. Phil, you shouldnt have said that, you're added to my PM contacts list
