I finally installed a Radeon 6570, and use cgminer. When I point it at ANY of your pools, using default settings from your Help section, I get very few shares. I have tried it on BTC and TRC, as well as on LTC (using scrypt, of course). In other BTC pools I have tried I get shares (about 80-85 Mh/s) but in your pools I get very few, if any. (I was connected to TRC pool for ten minutes leading up to the time of this point, and got two shares only.) Has your pool been rejecting connections, or should I be doing something special?
Coinotron pools send shares of higher difficulty than 1. So you submit shares less frequently but they are more valuable.
Here you can find actual values: https://www.coinotron.com/coinotron/AccountServlet?action=home ( BTC stratum uses share difficulty 4)