First off, if you fired that coil in Power Mode on a Ti coil, then the coil is already ruined, Ni and Ti coils can only be used in Temp Control. Try switching out the coil for a new one and trying again. I know very much so that vaping is subjective, but I have yet to run into any trouble, nor has anyone ever complained or commented badly about these settings on my mod. Try 500-550f at 30-35W. That seems to be the sweet spot for all the Temp coils for the eGo One Mega, regardless of which ohm coil it is. In all honesty, you're never gonna find a satisfying vape on that tank, for the sheer fact all their coils are garbage, not to mention they burn out rather quickly. The CLR heads are barely tolerable, and they're not even TC coils, so unfortunately, I have to recommend you get a new tank. If you really want to use and appreciate the Temp Control features, I would recommend getting a tank with SS coils, I've tried them all (Ni/Ti/SS/ yes I've even tried the "Taste Control" for Kanthal) and SS has given me the best TC experience to date. I recently got the Crown tank with SS coils, most flavor I've ever gotten from a tank, and the best flavor and vapor production I've had from TC.