CKPool is different from mining pool precisely. No reward is distributed to miners in the pool according to the hash rate the miners are generating. The reward is given to only a single miner that mined the block as I explained above, but the miners that joined CKPool do not need to run their own node. It is more of a pool that miners that mined a block will be given 98% of the reward and the transaction fee while others that does not mine a block in the pool will not be given any reward.
Well actually get what you are trying to say but honestly I'm just knowing about this. Basically what I understood about most mining pools before was that the percentage of hashrate you contribute is also used to calculate your reward after a block has been successfully mined.
If they allocate the total profit from a successfully mined block to the particular node that hashed that block, then what happens to the transactions fees that they are accumulate?
Edit:
I understand now thanks Charles