Your CYA is good. It's right in the middle of the recommended range. See how it works for you.
I'm assuming in Florida, you probably get a good amount of rain overflow and you live in a humid climate. You first reported CH level was 100 ppm (with no recent drain/water exchange), so that means you probably don't experience significant (if any) CH increase over time. A CH of 200-250 would make your pool easy to manage. You won't have to fight to keep pH down and TA should be pretty stable. Here are some numbers I ran on Pool Math. The last row shows CSI. If you can keep your pH and TA stable as shown, you can keep CH down to 200. Lower TA and pH levels will increase the aggressiveness of your water. You'll have to monitor your CH level. If you have to drain down your pool or experience overflow due to rain, CH level will drop. I would not recommend keeping it under 200 ppm.
View attachment 435042
What do you think?