Why would you use claymore miner at MRR?
The dev fee is going to effect your stats there. If you dual mine the fee is what 72 seconds per hour? That's going to greatly effect your stats and your renters will notice.
If you only solo/pool mine ETH then what is the point of using claymore? Just use another miner that already works with MRR.
I can just lower my advertised hashrate to take the dev fee into account.
And I'm also able to sell my Sia hash power there, so the dual miner function is actually pretty useful.