Do you think these are 3000mAH?
Nope, not a chance in hell!
The best availlable batteries from Sanyo/Panasonic still havent reached 3000mah, so err Trustfire don't have much of a chance.
The sad thing is they may well be good batteries, we all seem to like the 2400mah flame Trustfires a lot after all. They just have to go and make the batteries look bad by lying about their abilities.
Black TF reaches 2400 mAh. Dunno these are true 3000, but... 2800 could be 
(and perhaps they works better on higher power, i.e. 5A)
In the past high capacity cells were best used in low drain devices. If plannign to run XM-L's decently i would go with a proven reliable batteries such as XTAR, Hi-max, solarforce, IMR or perhaps flame TF since many liked those but i never tried any.
At 1A constant current discharge they measure 2566mAh.