Check out the Sigelei Legend. I ordered one on Black Friday and I am very pleased with it. It's going to operate the same as the Vamo, zmax, sid, etc. It goes 3v-6v and up to 15w. The construction is very nice, the body tubes are the thickest I have seen for that price range of mod, and the display is great, no scrolling text. The threading is very nice on all joints. The only place it's a little dodgy is on the removable top cap, it's not bad, just not as nice as at the other spots. Varitube.com sells them for $65, they have a thread in the vendors section here.