Actually no. Even though I agree that Claymore with his closed source obfuscated code and steep dev fee is sh*&, the results "shares-wise" I was getting from it was better.

Here's the stats from nanopool. This one is before the switch when I was using Claymore:

https://i.imgur.com/gwn6NVV.png


And this is after I switched to xmr-stack:


https://i.imgur.com/piVypGm.png