I sub ohm but I have I 1.3 in my kayfun that I like 2.2 would just take longer to heat up so lower ohms would be better I would shot for a 1.5-1.2 for a single coil build for duel I would go for 2.0 on each that would put you at about 1 ohm
Wow never had a coil that high in a rda make sure your air hole is lined up with the coil and I think I read you got lower nic juice I would go with less wraps and bring ohms down some 2.2 seems high
I have use my vamo , vv 3.0, mvp and many others along with a ohm reader and all were never off much so should be fine using the vtr until you get a reader the ohm readers are nice though for a place to put the atty to build