I have had genesis atomisers with air holes that probably range from .8mm to 1.5mm.
I think that 1.2mm, as on the Did standard is my favourite size, good vapour, the normal compromise with a slightly airey draw, but not too bad. Interesting enough I just got my first Zenesis atomiser the other day and while I thought the 1.5mm air hole would be far too airey, I find I don't mind it as well.
I think I may make all my mods 1.2mm now.
What size do others prefer? If you have drilled out other mods to the size you like, have you always got the performance you like, or has it varied a bit based on the mod?
Does anyone know what the gbell and Orion are? I suspect it is 1mm?
It's funny but at first I preferred to sacrifice a bit of vapour for a tighter draw, and the warmer the vape the better. I guess it's because that's what I preferred when I used to drip. But as time has gone on, I am slowly starting to like bigger air holes, to get more vapour, at the expense of some heat and tightness of draw.