I've been mixing diy for a while and it's been pretty simple using the amazing calculators out there. But I've come across one that maybe I'm being stupid but I can't quite work it out. It's a 200ml shortfill 70/30 VG, so they recommend 60ml bottles with 50mg of the mixed base and an 18mg 10ml nic shot for 3mg sub ohm vaping. I use more MTL devices that work best around 60/40 so want to get that ratio down a bit and get the nicotine to around 10/12mg. So with 72mg nicotene 100% PG I'm thinking 8-10ml added to the 50ml 70/30 shortfill will get me where I want but struggling to find any resources or ways to be sure. If anyone can help point me in the right direction it would be massively appreciated.