Glad you are winning with it @Lee... I'm still not winning... but I am persevering because I have a custom cloud cap drip tip coming and I really want to win with this atty... will try again with a single coil when my cloud cap returns from Kokstad!
The O-16 is a very easy flavor atty with the right build for the joose ran it in. So brother @Rob Fisher, to paraphrase you on the SM25 thread... don't give up on the O-16. I commented about the O-16 in a reply to one of your posts there concerning it that may or may not be of help.