First Q would be what voltage are you using? Second would be what resistance 510-T.
These things do make a difference. Just like they will make a difference with a carto.
Impossible to suggest a carto without knowing what you plan to use it on.
BTW, right now I am dripping with a LR 510-T atty (with the wick plate removed) at 3.3v, (eGo) and it's performance is right up there with a LR 306 or any of the other hotrod atties.
I'm just using the standard, and mega Joye 510 batteries. Not sure of the voltage. I think 3.7v?
I also do not know what ohms the "low reisitance" atty is I'm using is.
