Changed my ascent speed and dives got way better
I used to shoot up fast after finishing a job to save time. A guy on the barge told me that was asking for trouble. So I began rising slower, like one minute per ten feet. I thought it would waste too much clock on deep dives. But after a week, I found I had more energy topside. Last job in cold water, I stayed clear-headed the whole time. Now I always take it slow coming up and feel much better after.