Quote: (Originally Posted by
MarcLaukien)

Perhaps I'm reading it all wrong, but I don't see how what you wrote above backs up your claim that you can cross over from one CCR to a different one in two days or less.
Hey Marc, I don't claim anything, just copy paste out of the standards.
I understood you didn't have a TMX CCR cert so I posted in this case a FULL course on mixed gas.
A cross over on mod 1 is 4 hours owd , nothing wrong by doing two dives a day I gues, and in between there is some time left to go over the unit, have done one last week in the Red sea (by the standards

) but didn't cover all the items indeed as we where to busy playing with the camelion, a revo and other toys.So your right It can take longer!
I don't have the time anymore to check cross over on tmx ccr now as I'm going for some diving now, and need to drive a few 100km.
Cheers
yves