Hello there!

First wanna say TY for dev for thise miner!!! Its really important for me, because im only my first 24h in mining and this is firs miner that i was able to figure out what to do)
I really need help from you, guys to anderstand what is going on!
I have my msi 1070 armor, and now trying to understand 1 thing - can i actually
get $2.84/day as "WHat to mine" culc says for mining ZEC.
Now im mining ZEC on suprnova and miner shows me 450 sol (some OC). In *.bat file im using standart setting wich is "miner --server zec.suprnova.cc --user ***.q1 --pass q1 --port 2142".
I allready mined for 22 hours=0.02624205 ZEC, so simmple culc and i figere that in 24 hours i will have 0.028627691 ZEC = 0.00158712 BTC (best exchange in poloneix now). So it is
1.91$ per day!!! I probably missing something, i'm shure!! I tried before nicehash automatic mining and it shows me in stayistic that i will have 65$/month = 2.16$/day.
So:
1. Using gtx 1070;
2. EWBF's CUDA Zcash miner Version 0.3.3b. (miner shows 450 sol) ""miner --server zec.suprnova.cc --user ***.q1 --pass q1 --port 2142""
3. Mining on suprnova pool
The question is:
1. Let me know if i missing smthg in my culculations;
2. Is it fine to have 1.91$/day with my rig?
3. what i need to change in miner settings to get more profit?
Screenshots of working miner with standart settings
http://imgur.com/a/eOEpgScreenshots of working miner with difficult set to 16
http://imgur.com/a/yZog7Really TY you guys for answers and whaiting for them with patience! Because need to decide asap to buy or not to buy new rig)