Low accepts/shares with feathercoin

[fureien]

Hi Guys

I started mining feathercoin with my 1MH/s setup

However i get REALLY low shares

i am talking 80 shares every HALF HOUR!

With the exact specs and settings i get over 1000 with LTC

since they are both Scrypt based currencies, why the huge difference?


Specs:
2xhd 7950s
20736 concurrency (have tried 21712 and 24000) with 18-20 intensity


any tips would help

thanks