vv2win, there's really not that much fiddling needed, and just to let you know these units really run excellent on the Darwin, you know how that Darwin makes everything just jump better then any other Mod, well the Z-Atty Pro and the DID run super on the Darwin, especially at lower Watts I find, like 4.2w the lowest setting up to 5W the vapor and flavor is amazing with a 2/3 wire wrap,,,, I think you would like these. I havent liked any Genesis units to date until both of these.