Pro-tip, crown just use 2.5mm diameter in the rba mount it facing down -o- instead of _o_ = no leak. Wicking wise just place the cap and cut to the top then stuff it down.
TFV4 though, I've only used TFV4 mini the clapton rba but this little bugger post wiggles so much that it loses connection all the time. (looking at the dual rba makes me lazy to build on that)
STM still boss in terms of building
Ahuhh, nice tip...maybe next time i should mount the coil facing down. I just finished doing both tanks rba XD
1 Horny Strawberry & 1 Horny Mango! Time to get horny!