Great feedback guys. So many conflicting posts have been flying about in DIDland about the fill hole screw in and out, kinda realized the #500 stuffed wick hole was causing a vacuum lock but great to have your experience to back it up. My DID std is still running it's 10 wrap 28awg nichrome 1.6ohm 100 mm #500 after 60 mls of juice and scrub with hot water and a toothbrush. It's the most stable setup so far. This combination looks like it will endure forever. Good thing too as my 32 and 30 awg kanthal has been three weeks comming from the US to Oz and still not here

Now I want some 28 kanthal, but, waiting makes me cranky.
I will be making my own genny and battery mod out of SS on a friends lathe next week.
What size should I go on the wick hole? 4mm?
I've been thinking about making a tiny adjustable vent controle valve to fine tune the wicking on the fly so will try to work this into the prototype design. Any thoughts on this, or other ideas on making the best of all known genny science?