Hey all, i am currently rocking the istick30w with a nautilus mini and have just purchased an istick 60w with temp control and the melo2. Now i would like to still use me nautilus mini. can anyone tell me if its titanium or nickel? And what temperature you recommend? I have never used temp control before and such high wattage. (currently have it the same as the istick30 is which is 7.2w/3.71v