I've been wanting to get into sub ohm vaping for a while, a friend has very kindly pieced together a kit (mod, RDA, batteries and everything else) to get me started and coiled it up for me. He's told me to check the resistance on my evic before I start using it, it's a 0.7 dual coil on a crown RDA. Would I be best getting an ohm meter? Also, what's the best juice to go for when cloud chasing higher VG?