Total this block: 11825
Eligible for Reward: 6359

Could you clearify this?

Maybe it's just cosmetic. It looks from my point of view that I have 11825 shares but only 6359 are counted toward the next block found?

I know the need to stop pool hoppers exists. But it really bites guys like me who mine all night 8-10 hours just to end up loosing all my shares durring the day when I don't mine (using pc durring the day). Would it save my shares if I logged in with only one of my cpu cores mining? or maybe just one of my 5970 cores mining durring the day?