Ok, good.

Remember that CYA=160 is still high. Folks in dry areas have been able to run levels as low as 5% of CYA successfully, but that means a MINIMUM FC level of 8 ppm. Whether you need higher levels or not depends on how much goo gets in your pool -- it appears that in areas like mine, where there's algae in every puddle and on every leaf, you probably need more chlorine.