I'm brand new to vaping & I am receiving a Wismec Reuleaux RX GEN3 DUAL 230W Box Mod with a Smok TFV12 Prince Tank. My question is, since it's a sub ohm setup, which VG/PG ratio e liquid is best? I'll be using 0mg nicotine & the V12 Prince M4 Quadruple Coil, 0.17 Ohm, Rated for 30W-70W (Best at 40W-60W). I've read that 80/20 is ideal but I'm wondering how 70/30 compares? Any input would be great! Thanks.