Might be off topic but - when you say miner, do you meaning mining pool (and solo miners) or miners within the pool itself?
As far as the protocol is concerned only the entity creating the block (and deciding on which tx to include) is the "miner". That would be p2pool users, pool operators, solo miners, etc. If you are "mining" for a traditional pool you really aren't even a miner, you are a hashpower provider. You send the pool hashes, and they pay you for them. You have no input, the protocol has no idea you even exist.
