So I have been learning alot here and have been convinced that your collective advice is the best advice to follow. My local Leslie's still insists that FC/CYA ratios are crap. Here are my latest test results and treatment method
FC= 10.0
CC = 0
Ph = 7.6
TA = 110
CH = 170
CYA = 70 - 80
Test done in am after adding chlorine the night before. I am in the process of measuring chlorine loss on a typical day and on a typical night
Because I want to raise CH I am temporarily using Cal-Hypo.

Here's my question. I use test strips (I know!) between tests with my Taylor kit to monitor FC. While the Taylor kit reads 10.0 the strips read 3. I know the Taylor test "unbinds" the chlorine attached to CYA which is then part of the result. I assume that test strips do NOT "unbind" chlorine attached to CYA and that (in addition to their inherent inaccuracy) is the reason for the different readings. Or am I off base?