I picked up a Zenith rda clone yesterday, guy in the shop coiled it up for me. Reads at 0.25 ohms with 24 gauge wire, two coils in parallel. I'm getting half as much flavour as I was from my normal 0.6 ohm build in a different dripper, it's one that came with my overdose clone, not sure exactly what it is. I've tried all the different airflow adjustments but I remember reading somewhere that you can possibly lose flavour with thicker wire? Is it worth just recoiling this myself to around 0.5 ohms?