Again : You can't change the rules just like that without a sufficient delay. Some guys here have a job IRL, and they just can't be monitoring their rigs or reading btctalk every minute.
This morning I was still mining minerals even if the rules had changed without a sufficient delay.
But I saw, after having lost many shares cause of the workers number change, that my hashrate with only 1 worker for 5 rigs was around half my hashrate with 5 workers/ 5rigs, and I was about to be away for 24 hours. I was fed up with changing rules, low hashrate on pool with only 1 worker and, most of all, afraid of a possible new change in the minerals mining rules : downto 25 MH/S? upto 100 MH/s? 2 workers? 10 workers? X11 -> X13? who knows?
So i just switched my rigs another altcoin...
Minerals looked great at first sight, but changing rules + no wallets it's just too much for me : not reliable enough to spend electricity on it.
Ho btw I almost forgot, I switched to Saffron-X11. I didn't expect such a pump, good choice finally