Jandy SWCG's "optimal" water conditions: why raise CYA?

[rpoldervaart]

SO HERE IS MY QUESTION TO ANY AND ALL POOL OWNERS WITH A SWCG THAT KEEP THEIR CYA AT 80 PPM AND THEIR CHLORINE AT 4.0 OR HIGHER, DO YOU EXPERIENCE OR GET COMPLAINTS ABOUT BURNING EYES? BE HONEST, BECAUSE THAT WAS MY EXPERIENCE.

I don't feel any burning. If my son swims in our pool, he'll have pretty clear eyes later on. He came home the other day after swimming in a public pool and his eyes were bright red. I have no idea what the chemicals were like in the public pool.