My istick 50w finally died and it gives me a great excuse to upgrade. I really want to try out a TC mod but I am not really up on which mods are best. I was looking at a 75w-120w mod. I have a Crown tank and mostly i have been looking at the Sigelei 75w, IPVD3, VTC mini, and IPV4S. Please let me know what kind of mod would work best for me, I have not bought the RBA unit for the Crown yet but i do plan on it. Thank you!