Dear OP,
I too have a KGO and I can tell you firsthand that the Stardust (Ego Vision Clearomizer is the official name of it) is a piece of crap on the KGO. Due to minor variations on the battery connector the airflow is choked off and they have many many many flaws that make them satisfying for anything longer than a few day. For the price they are not worth it. However, a Vision Vivi Nova with an ego 510 to 510 adapter (also called a 510 cone adapter) for cosmetic reasons (it streamlines the look - if you don't have one your PV will have a depression under the tank which makes it look silly) fitted with a low resistance atomizer head is going to be your best bet IMO. You can rebuild them, they can be fitted with a steel tank, and you can control the resistance. They recently started selling rebuildable stardusts, but one of my major complaints besides the airflow issue (tight draw) is the fact that the tanks crack constantly and there is no way to repair them that looks good. It basically comes down to huge globs of silicone sealer put on the outside of the tank. They claim they are now unbreakable but then right next to that they have tank replacements for sale. Now why would they have those if they never broke? They break, that's why. On top of all that, because of the stiff draw you end up cooking the atomizer for so long that it heats up the center post and cooks your juice which will darken it and make it basically unvapeable in the stardust. Even a boge cartomizer has a little trouble vaping it. Stardusts are so a few months ago. BTW: if it doesn't say rebuildable stardust in the title of the product then it is not rebuildable at all. The first generation could be taken apart and rebuilt, which is why I invested in them in the first place, but I got 2nd gen stardusts and actually broke a couple trying to get them apart the same way as the first gen ones were taken apart. Fail.
