Re: [ANN] dstm's ZCash / Equihash Nvidia Miner v0.5.8 (Linux / Windows)
Don't count shares if you don't know their difficulty (value), count total Sol/s. I guess your pool show somewhere total hashrate of your workers, and that matters 
Soooo... if I have more hashpower am I getting more difficult shares or what? :S
Maybe (why not), but they will have higher value of course.
Try mining ZEC on Flypool, there is fixed difficulty, accurate hashrate reporting, nice graphs, so you can easily compare if your two cards mine more than just one. But you should let it run for at least 24h to get accurate average hashrate.