I've just done my first dual vertical in the aromamizer, using 26awg twisted kanthal, almost screwed it up, went for 6/7 wraps, but it was too greedy, the leads started to buckle down, salvaged it though, came out at 0.15.
Wicking wise, very fortunately I recently invested in the grey haze tool kit (coil master V1 DIY), the thin angled tweezers bundled in were a life saver for pulling the cotton through and splitting it over the deck. Chugging away at 60w, airflow wide open, seems to be wicking fine
Also, I wouldn't say the vape is any better then horizontal coils, certainly denser, but not much in it tbh. I may rebuild and do a 4/5 wrap with some clapton and see what I end up with.