Maybe they are starting to get more consistant

I flew from BDL the day after the Freedom Zips were annouced (last week). I had a 4 oz. bottle of saline in the bag. There was a TSA pre-screening guy who asked for liquids, gels, etc. I dutifully showed him my Zip and he tried to confiscate the saline claiming it was over 3 oz. I quoted the rule "4 oz of contact lens solution". He said that was only for medicines. The bottle didn't say "medicated" so it was not acceptable. I protested gently so he called his supervisor who immediately said it was OK.

On the return trip, 3 days later, starting at RNO, there were 2 pre-sreeners. When they zeroed in on the saline, I thought I was in for it again. But, instead, they flipped through some pages in a ring binder and made a note on the back of my BP with something like "Cat II, 4 oz".

This week, through BDL again, they let me through without any discussion but made the same notation on the BP. I guess they finally got the memo.