Hmm... I was showing 2800HPM, running 100 machines with 30HPM each showing in client. Now it's showing 1500HPM, that can't be right, I wonder if they switched to another server.
But afterwards you've disabled it manually..
Unfortunatelly you havn't found any blocks during your work, this is because there was only a few capacity at the pool. Our power was never more than 5% from the network hashrate (even with your HPMs), while the other get ca.90% and 10%.
Too high concentration of power at a pool means a negligibly small probability to find a block for the other one.
I'd suggest we three (with "MFH4DrpkfWWfFRvtdu6TJuT4D8txKAKM6b" with his 2K HPMs) try the same HPMs at the same time. The idea is, we'll be able to reach the "one-block-in-one-hour" level.
The system works correctly, I didn't change anything there, but three blocks were found for last hours. If there is a pool with a few capacities you have to look at a whole period of time -a day (with a constant speed!), but not at a stats for two-three hours.
For example, the earning coins of working hours of "MFH4DrpkfWWfFRvtdu6TJuT4D8txKAKM6b" conside with calculator.
But it works only by the same speed the whole day.