[DanE]

In true blue peter stylie, here's a plan I made earlier....

Dec to 32m (3) Nitrox 32 10m/min descent.
Level 32m 36:48 (40) Nitrox 32 1.34 ppO2, 26m ead
Asc to 21m (41) Nitrox 32 -6m/min ascent.
Asc to 9m (44) Nitrox 50 -5m/min ascent.
Stop at 9m 0:46 (45) Nitrox 50 0.95 ppO2, 2m ead
Stop at 6m 11:00 (56) Nitrox 50 0.80 ppO2, 0m ead
Surface (58) Nitrox 50 -3m/min ascent.


So, I leave the bottom at 40 minutes and ascend to my first stop at 9m (there's a gas switch on the way as well) It should take me just over 4 minutes to get to 9m. If I got it right then I will wait at 9m for 46 seconds.
Next I ascend to 6m at 5m a minute. So it will take just under a minute to reach 6m. The combined time of that ascent and the time I spend at 6m is 11 minutes. So if it took me 40 seconds to travel from 9m to 6m, then I have 10 minutes and 20 seconds a 6m.

WARNING: I'm not sure if I've dived this plan. It is just an example! Please - nobody follow it!

dan