[And]

Hi

I recently read an article on RBW which covered CCR's and cave diving which was more of a 'what' than a 'how to' article, and following Bardo's post about trying out a Boris I have a couple of questions.

Knowing you only have one scrubber, how do you determine your penetration time? Do you just pick a duration and then run thirds, similar to OC? I have heard someone say this before, maybe Zak, can't remember.

If so, then using the common duration 3-4 hours, your penetrations are restricted to 1-1 1/2 hours I guess. What do you do when you want to go further?

Andy