If my private kernal can do 8MHASH of quark on the standard clocked(750ti) you gain 2MHASH per card. With 100 cards, you have 200MHASH more than today. 200MHASH per day is $15.21 more income per day.

But If I spread it public, the quark payouts will suffer. I am byuying cards every week now, to increase my profits. Maybe one day I will make it my living, and then I see no point of sharing.