Nice! You're really happy with the Kronos?
I had it for a while and built it a few times but wasn't overly impressed with it. I was running all 90% VG at the time and it really didn't wick all that well even with the mesh feeder tubes removed. I dug it out again last week for S&G's, put a 24g SS316L 8 wrap in it and tried a new 70/30 juice I received from a local B&M to try out. Well the thinner juice worked much better than before and it is a decent little RTA again.
The airflow can be dialed down to MTL or opened for a RLH. It has a top fill, but without a JFC you need to be quick when you have the top off of it or it will flood. I find it much better to just invert it, unscrew the tank and fill like you do on the FeV.
I'd like to try an authentic with the open draw kit, but to me it's more of a tinker RTA than a daily driver.