I finally updated myself from an older version of CG miner to the current version for my U1.  When I used the start command line of

cgminer.exe -o stratum+tcp://pool.ckpool.org:3333 -u 12fvYKMQ7BgBuWqVfTvq8VH1TKnh7zNB3z.USB1 -p  --anu-freq 275 --suggest-diff 20

CGminer automatically picked it up as a AU3 not the ANU that it should have.  After a couple restarts it went back to recognizing it at an ANU.  No real issue, but when it was thinking it was a AU3 I was getting some weird error messages. 

Is there a way to force CGminer to only stick to ANU recognition?