My usual diving is in the 100-120' range around here while spearfishing. By definition this can be strenuous, as most fish object to being speared
My typical ascent profile looks something like this:
1. From bottom at 110' or so, ascend to 55' at 20-30 fpm. Elapsed ascent time is about 2 minutes.
2. Hold 55' for 1 minute, look at any fishies that are hanging around me (there frequently are some at this depth.)
3. Ascend VERY slowly (usually at a rate of about 15 fpm or so) to just under 20' and hold for 3-5 minutes. I tend to stop at the lower limit of 10-20' (18-19' or so), as it both keeps me away from the people danging at 15' and is a slightly higher pressure (less dramatic change.)
4. Make my final ascent very slowly from 20'; typically this takes me at least two minutes, and sometimes three or more, to reach the surface. My goal is to see the depth display tick off a foot no more often than once every five seconds. This barely even counts as an "ascent" on my computer's ascent meter.
I've found that this works well for me.
My typical ascent profile looks something like this:
1. From bottom at 110' or so, ascend to 55' at 20-30 fpm. Elapsed ascent time is about 2 minutes.
2. Hold 55' for 1 minute, look at any fishies that are hanging around me (there frequently are some at this depth.)
3. Ascend VERY slowly (usually at a rate of about 15 fpm or so) to just under 20' and hold for 3-5 minutes. I tend to stop at the lower limit of 10-20' (18-19' or so), as it both keeps me away from the people danging at 15' and is a slightly higher pressure (less dramatic change.)
4. Make my final ascent very slowly from 20'; typically this takes me at least two minutes, and sometimes three or more, to reach the surface. My goal is to see the depth display tick off a foot no more often than once every five seconds. This barely even counts as an "ascent" on my computer's ascent meter.
I've found that this works well for me.