I don't know the inner workings of Terks pool setup, it is likely be something entirely else. There is a lot of work going on behind the scenes; multiple coin stratum servers with a proxy redirecting people to the right internal server, adjusting worker count based on coin difficulty, storing share results, importing exchange trades, etc. etc. I've got very little experience when it comes to the actual operation of a mining pool, so all I really can do is to make a bunch of assumptions and that won't help anyone.

All I do know is that Clevermining gives me a higher reject ratio than anywhere else and there isn't much that I can do about it on my side. But in the end it's the payouts that matter. :)