You'll enjoy week 8 and the deep diving!
I spent a whole 5 minutes at 50m monged out of my head attempting to drill though a steel plate with a drill set on reverse.
Strongly suggest (if you are able to, I think my record was about 20 seconds down the wire) racing down to 50m as quick as you can, the effect is much better than if you just crawl down to depth. This is probably why my buddy (who took 2 minutes longer than me to get down) realised immediately that my drill was set incorrectly
