tc mods

Hi guys, Right to the point... I consider buying a small 1 battery second/backup mod to use with my Siren 2 and/or Merlin Mini. I am a little short on budget and my candidates are; -Smok AL85 -Istick Pico -Smoant Battlestar Mini. I tend to use TC mode if i can. (I need some help on using TC...

I have the eleaf 100W. I am looking at the sigelei tc 150W. This is completely ignoring TC. I just use VV/VW. With Subtank Plus. I have always wanted the Sigelei 150w, but if there is no difference, I don't need to waste the money. I only vape 15.2W. Thank you all in advance!

Originally I posted a thread asking for help choosing a TC mod. After lots of great info I found out that the Koopor plus 200w and Reuleaux rx200 are not only well priced but also both TC stainless steel coils. This is a huge thing to me as I REALLY love my Crown tank and love the stock SS...