i dont know what im seeing in these posts.. but it seems its showing the block reward % based on shares, then when its paying out its different?

is it just a few different algos? it doesnt seem to be doing it with sha256.. i guess you cant really check very easily. since it strictly shows the payout in mbtc and id have no idea how many certain coins i mined..
but this seems to be the best pool for sha256..

i dunno if its been suggest but have you tried the yiimp authors pool with those coins to see if the code is flawed?
https://github.com/tpruvot/yiimp

http://yiimp.ccminer.org/

it has sib with zero miners, so all the coins would be yours and you can see if you get the exact correct amount..

im not sure what modifications crackfoo did to the code.. but if the coins are off in the base, it would show where the flaw is