Is the flee fly crappie guage a good checker?is it a accurate checker? what are y'all's thoughts on it?

I'm thinking you are talking about the one with the cut out down the middle. I bought one back in the spring. We tried using it for a good while, and decided it should have been designed better. You cant hardly get a fat 10 incher all the way to the nose. I went back to the old style and thinking about cutting a slot in it. Just my 2 cents.