I'd like to first thank all the informative replies in the beginning of this thread on this very controversial topic. I can echo some others experiences with the Air Force CCT screening and the associated "woes" that came from it.
I began applying to Air Guard units in 2013 and landed a UPT slot out of college in 2014. Doing my due diligence, I educated myself on all aspects of the color vision screening for an AF FC1 physical. The consistent factor that people were having issues with was the CCT. Knowing I had never done particularly strong on the Ishihara plates, I sought out a doc that had the CCT and was able to practice it. Much to my disappointment, I could not pass the green portion. At the time, they were still using the 75 and above for the passing score in each color category. I was scoring 50-55 in green in each eye. After talking to the unit that hired me, it was decided it would be a waste of time to move forward with Wright Pat if we already knew it would be a failure for a non-waiverable issue. Maybe a little naive on my part at the time, but that was that. Few years go by and I join the Army and commission into a non-rated officer position. 2019 rolls around and I happen to discover the AF had changed the standards on the CCT down to 55 and above for passing score. At that point, all my focus in life shifted to get back to the AF as quickly as possible and realize my dream to fly. After a year of interviewing with Air Guard units, I am offered a dream job flying heavies with a fantastic unit. Before I went to Wright Pat for the FC1, I sought out yet another doc with the CCT and was able to attempt it a few times to refresh myself on what to expect. The first few times were not great, but once I got in a cadence, I was able to consistently pass it over and over again. This gave me the confidence to go into Wright Pat and ace this.
Half way through the Wright Pat experience, its time for the vision screening. To my dismay, they administered a few different tests first (depth perception, etc.) before the CCT. I was hoping to take the CCT with rested eyes and use every ounce of my deficiency to achieve the 55. But, it wasn't meant to be and I failed the green by 1 point in each eye (each point is worth 5, so I got a 50 in the greens instead of the 55). I can tell you that that was one of the most gut wrenching feelings in the world, and having to be around all those other excited applicants for the rest of the time where they all passed. To further make sure you can't ask for a re-test or waiver, they give you a battery of other color vision tests on a computer that focus on the deficiency from the CCT, all of which you will not pass if you are mildly deficient. I left Wright Pat with a "moderatly color deficient---strongly suggest against rated position" in my file. A guy that passed 14/14 on the MEPS Army entrance, passed annual PHA color vision tests and flown 10 years on the civilian side with a First Class FAA medical, is now deemed moderately colorblind by Wright Pat. I know its not supposed to make much sense, but I still can't help but to scoff at that notion. My hiring unit was extremely helpful in trying to find a way around this, but Wright Pat and AETC med command was so stringent that they would not even look at outside test results I received from a civilian doc stating and showing that no, I was not color deficient to that level.
I think the way the AF looks at color vision has gone exponentially backwards the past few decades based off of what others have said on forum posts like this. Color deficiency is being seen as color blindness, which is blatantly incorrect. Folks having issues with color vision testing at Wright Pat (and probably other services flight physicals) should be afforded the same "help" or second chances that people with depth perception or acuity problems have. The idea that color vision is set in stone, and you have what you have, is simply not true. Sure, you're born with it but some people are so borderline deficient that they can fail in one sitting, and pass in the next sitting. Exactly the same as with depth perception. I feel kinda "f'd" at this point if I wanted to try another branch for flying. I would definately like to go Navy if that was even possible at this point, but I feel like the amount of scrutinization I would receive after having a DQ from Wright Pat in my record would make it an instant no-go.
Okay, rant over.