Thanks to UKDTweak for your time and the help you have given, but i cannot get TC to work for me using Ti at this time, so ive gone back to my trusty Kanthal and vaping away happily - i might try some Ni200 or NiFe30 over the week and ill try and get some SS too but so far my experience of TC is not good.
Sorry you have not been able to get it working to your liking, only thing i can think of is to stick with the Wire Wizard curve that does not hit TC limit too fast, but gives you a funny flavour/harshness as it occurs to me, some of my TI builds taste funny for around 6-12 toots before it goes away, not sure what it is as its the same wire and wick i always use, but it does happen, so before you rip out the coils, apply your TFR from the Wire Wizard and then force a ghard reboot then take a good few toots maybe at lower power and see if the funny taste goes.. sometimes it can take 1/3 of a tank to get through but then once it goes the flavour of the juice comes though as it should and you are golden from there on in.
the harshness could be you nic level, i would not vape over 6mg on sub ohm, especially in TC as you are supper sub ohming..