Multideco... tips and tricks?

[mr_v]

That's fine I gotcha. I was thinking these were 80m MOD3 training wreck dives not an overhead.

For MOD3 training wreck dives, you may want to split the dive plan in multiple levels, depending on the dive profile and the worst case scenario you your instructor wants to run.

Suppose, you have to drop to a wreck that 80m deep. Then you swim to the end of the wreck for 30m. Then bad things happen and you must bailout. The captain is waiting for you on the upline, so you must swim back to the line, then go up. As you start swimming, strong current kicks in, so your typical BO scenario may not work, as you work 3x harder than planned. For that scenario, I'd have several legs in Multi Deco and increase the duration for swimming back from the far end of the wreck to the upline by the factor of 3. Of course, there may be other options, e.g., NJ upline, drift dive, coming up on a bag, etc.

Breaking a dive into multiple levels and thinking about my gas consumption on each level gives me clarity. I know I can simplify this in the software, but I prefer working out things manually.

Actually, that's where MultiDeco and other dive planning apps fail. They ask us to input our time, gas mixes, depth, etc. If I were to write a dive planning app, I'd chart a dive profile first, then enter the worst case scenario part for each leg, then have the software do its magic, calculate deco and gas needs. I don't have time to do this now, but if I become independently wealthy, I'll write that app. Would be especially cool for cave dives where you enter a map, plan your way in/out, and so on.