Are you telling me that if I were the only guy on Slush, my hashing power would be so proportionally large that I would receive the full 49 coins
If he was still talking to you he would say yes.
at the rate the pool found blocks a day ago?
No, it would be at the same rate as if you were mining solo.
So, before you got 0.03 each time the pool solved a block, now you get 0.06 each time the pool solves, but this happens with about half of the frequency. Do you understand now?