Well I am happy with 100% rejects as well as long as I am getting paid well. I am here since 18hours for testing the pool for a couple of days, and we will see.

Btw a little explanation on rejects : Your share is only getting rejected when you send in a share which is not actual. Actually the pool needs to notify the miner that we have a new block/coin mining and stop mining the old one. When your miner is not getting notified then happens the reject. I am sure you will be able to improve the reject ratio, but probably you will need to recode some parts of the stratum-mining, and open and EU server. You need to force the stratum-mining to notify the miner every time there is new block or new coin being mined, maybe you can make make some debugs with sniffing the packets when the stratum fails to do so.