Corley, did you order any adapters? If so, I'd suggest using the Vision Ego Clearomizers/Stardusts you said you were using in the other thread. The standard resistance ones are 3 ohm iirc, so you should be able to dial the voltage around on them pretty well. The only other clearomizers that I've used and liked are also made by Vision. You can get them pretty much anywhere and they're 510 threaded, so no adapter needed. I'm not sure what the standard resistance is on one of those is...
*hooks up multimeter*
I'm getting 2.6 on one and 2.8 on another, so not a terrible choice. Can't dial those up quite as high, but it's not really necessary.
Other than that, fill up your carto with juice, screw it in and get to testing. Start at a low voltage and ramp up between vapes. I find that if the voltage is too low, you won't get much in the way of taste or vapor. If the voltage is too high, the juice will begin to lose taste, then begin to taste scorched and then taste burnt.
One last thing. I find that different liquids will have different 'sweet spots' even when using the same atomizer. That's the nice thing about having a variable voltage device. You are in control and can switch things up pretty easily.