Hopefully someone reading it will realize how idiotic the notion that, after you're over the "safe" M-values, you can "re-calculate" yourself to be under them again, is. In which case my post was not in vain.
What are the "safe" M-values?
If I dive with GF30/70, skip the last minute of the last stop, and get out with a surfacing gradient of 80, is that now unsafe? How much less safe? Is it any less safe than if I started and finished the dive with GF50/80 and did the full measure of stops?