For each dive, we plan the dive with V-Planner and then decide whether it will be our main plan to follow or a back-up by using a computer. We always compute some table as back-up, like few meter/ft deeper and few minutes longer. Using the plan on slate guarantee the team to be all together at all the time, which is a critical element in tec diving in my view. By deciding to choose the computer as main plan and the slate as back-up, you have to accept to be delayed within the team during the deco. We never follow one computer for the team, that is against all safety rules. Personnally, I prefer to follow the slate but for some dives I did the other way around. In the two choices, you'll have to follow the plan for the bottom part, otherwise your back-up won't work on the deco part.
Choosing between VPM or ZHL16 doesn't really matter as far as you understand what will happens during the dive and the deco part and take that into account in the preparation within the team.
Choosing between VPM or ZHL16 doesn't really matter as far as you understand what will happens during the dive and the deco part and take that into account in the preparation within the team.