I've been vaping for over 5 years, and I know a lot about vaping.

I don't use a RDA, for it's too much of a hassle (direct dripping onto a re-buildable coil).

One mod I use is a 150 W Segelie Box Mod (2 2800 mAh batteries) with an Aspire Mega Tank (5 mL, .3 Ohm, double OCC). My nic level is 3, but when you vape high-wattage, sub-Ohm coil the nic is greatly intensified. I go through a lot of juice, so I buy juice in bulk from bulkejuice.

The other mod is a 200 W temp control Smok Tech X Cube II Box Mod (2 2800 mAh batteries) with a Smok Tech TFV4 5 mL top fill running a .2 Ohm triple OCC. Juice also from bulkejuice.

Feel free to PM me if you want more general information on vaping.