I have my DID bored out to 1/16" as well and I'm REALLY happy with how it performs! Whenever I get a new genesis I always vape a few ml through the coil to break it in and test the draw on the stock cap, and then almost always end up opening it up to 1/16". From there, I either stick with 1/16" or bump it up to 5/64" (which I always do with at least one cap if I can get replacements for that particular device) as I'm a total sucker for vapor production. Where I'm at with the DID currently is that I think I'm going to keep it at 1/16" as the flow dynamics within the vapor chamber are perfectly executed and ultimately increase the vapor production without sacrificing flavor, th, or a tighter draw (which I'm impartial to, but I know it's important to many new genesis adopters).
And while I'm on the topic of flow dynamics, those of you who are just wrapping your wire around the post are severely hindering the DID's performance as any air that enters the vapor chamber and passes over the wick goes straight up into your mouth, rather than being forced around the post, creating a vortex of sorts, and thusly drawing more air over the coil. Not to mention that you'll get a much stronger connection with the nuts, will experience far fewer shorts and hot spots, and will be able to better preserve the linear shape of your wick, thus reducing potential kinks which will severely hinder wicking capabilities.