poolinator.com - Planed pool maintenance
Vardiff port should be working now. On the testnet i have tested it with very low values and after some time, the pool rejected some of the shares because too low difficulty. Still, vardiff is untested on real network.
I personal will try vardiff port and if i spot any problems i will post here again.
I'm on the vardiff port on all 4 PCs and I just found a block. So all appears to be going well.
However, it seems to have reduced my diff on all miners to the minimum and it's stuck there. I'm guessing this is not what you wanted?