I just picked up 2 of the 25mm Subtanks from VapeNW since they had them on sale for $30 each, couldn't pass that deal up so now I have 3 total Subtanks, LOL, grabbed a Kayfun 4 clone as well (another awesome tank, love it!).
On the new ones I just got, my mods won't read the RBA however my ohm...