I just want to make sure i've understood the difference, please ...
Proportional: Reward is based on finding a block. (I think i'm wrong here)
Pay-per-Share: Reward is based on the number of shares submitted, and the price specified on the homepage per share.
Yes, you are right.
Proportional: you get your part of the block when it's found. If you submitted 10000 shares and the block took 20000 to solve, you get half of all the reward.
Pay-per-Share: you get that fixed price for every share instantly, even if block is not found yet.
This does need to be simplified a bit more, e.g.
Proportional: . . . you get half of all the reward, less three percent, which is commission to the pool operator.
Pay-per-Share: . . . that fixed price is, on average, ten percent less than you would get on a statistical average over the long term.
I think these are fair commissions as they are in line with others. I mention it here only because if it is not completely clear to everyone, people are going to jump all over you when they finally get a clue and they are going to accuse you of cheating them. Look at Slush's pool . . . people were asking him pointed questions, as if he were up to no good, at a time he wasn't even charging anything. Just FYI, the only reason I left Slush's pool is that I was getting a large percentage of invalid/stale responses which may have accounted for a percentage of loss larger than anyone's commission. That may have been a problem on my end, and not with Slush's pool, but since it has apparently been eliminated, I will stick with your pool for awhile. My motto: Put all of your eggs in one basket. Then watch that basket.
