Thank you very much for all the info! I don't think I'll have any more problems from here going forwards.

I sieved through 5.5 to 6.2 mil this afternoon, but I didn't find any poly above 3.2e-13. I only have a laptop with a 950m, which's the only machine I've been sieving on. There are some technical difficulties with uni's machine.

One more question, is the polynomial searching non-deterministic? I think I got different results passing through the same range twice.

Also, are there any particular aspect / coefficient of the polynomial I should be looking for, besides the Murphy E-score? Or are they simply data points that don't carry much weight?