thanks for explaining that seems wierd but if it works, so if my pool payouts keep going to one address then its still keeping the amounts seperate?
I don't think anyone addressed this bit. The answer is no, the amounts aren't kept separate. It's only when an address is an INPUT that its entire amount gets spent. You can have several transactions send to the same address, and the address only stores the total balance (though the blockchain keeps a record of each transaction, and so will your client if you can be arsed to look, which I usually can't).