I'm testing coinsolver vs WafflePool on a single card too ....
24 h of 310 khs generated 0.002 BTC on coinsolver
12 h on wafflepool 0.00078 BTC ...
thing is on waffle I get only 1% rejected share whereas in coinsolver is way high ... about 15% or more varying ... maybe due to no vardiff on coinsolver