For some reason, Give-Me-Coins is only showing me mining at a rate of 11 kh/s while Vertminer says I'm getting an average of 410 kh/s.
Is you config free of HW and have you waited at least 15 min for it to ramp up
Look at your R = rejects. And HW = hardware errors. GMC only counts accepted shares. So your config might need some tweaking.
How do I check R and HW Errors?
Look in vertminer window for HW:0, if it is not 0, then you have to change your config.
I don't know what cards you have. My XFX 7950 give me about 265kh/s with the following config:
Why is everyone saying not to put i above 13?