c is .001 and f is (-$c)/(1-$c)
The scoring system appears to be stable at the moment (as of the last block), I have been running it in tandem with the proportional method to be sure it's computing right.
Those dumps look nice, I will look into implementing that going forward. I have been severely time limited this last week and half with the holiday and all so things have mostly been bug fixing. Things are beginning to stabilize so I should be able to get back to forward development this weekend.
As far as the EU server goes - there are people connected to it and submitting shares. What error are you getting?