Glad you wrapped-up the SLAM. As for the high CYA, well ... it's up there.
CYA will go down over time from splashout, water exchange, occasional backwashes, etc, but it looks like you're a bit over 90 perhaps? To try and estimate your CYA better so we know how high you may be over 90, try the following CYA Dilution Test:
Add pool water to bottom of sticker.
Add tap water to top of sticker.
Shake.
Pour out half so mixture is to bottom of sticker.
Add reagent to top of sticker.
Shake.
Test outside with back to sun and tube at waist level. Pour back and forth a few times to see if you get the same result. Double the result. That's your "high" CYA.
Depending upon how high your CYA is (i.e. 90), you may be able to simply ensure your FC stays a bit higher. Example: CYA chart show CYA of 90 = FC of 7-10. But if it's higher than that (over 100), you would be better served to simply drain some water to exchange it with fresh stuff. I try to keep the math simple like this: If my CYA is 120 and I want a CYA of 60 - drain/exchange 50% of the water. 25% water exchange would get me down to about 90. You'll know once you get the dilution test results.
Good thing is that now with TFP, you won't be adding any more stabilizer/CYA to your water unless YOU chose to.
So you won't ever be in this position again.