IMO, if anyone is getting less than 30 mpg on a 110, there's something amiss. As in your "tune" is not a tune at all, it's just running in open loop all the time, and too rich at that. Unless you're running at wide open throttle positions ALL the time, a properly tuned CVO should get between 35-50 mpg, depending on riding conditions. I'm not one to "putt around", and I've never gotten less than 35mpg, usually about 38-42, and as high as 48.
There are a lot of "old school" tuners out there who will defeat the entire purpose of the ECM by forcing the bike into open loop ALL the time. Might as well put a PCIII on the bike if it's done that way.
JMHO...