Do you have a hygrometer inside your PRS cases? With the humidipaks, my humidity has measured up to 55% with a single in the case. Unless an entire brand of (admittedly cheap) hygrometers is inaccurate, then the humidipaks have quite a large upward variance from their stated humidity level.
Most inexpensive digital hygrometers are inaccurate. I have had one in my case, and mine read 40-50% but who knows how accurate it was?
By coincidence, I have two sitting out in the humidified room I’m in right now. One reads 32% and one reads 38%. They happen to be sitting about 3 feet apart!
They can’t both be right...
After reading your post, I checked the Taylor website, because Taylor is so well-known for preaching proper humidity levels; they say the “ideal” humidity range is 45-55%, but 40-60% is acceptable. So at 55% your guitar is hardly at risk, it’s in the sweet spot. Note that in the article they recommend the D’Addario packs:
https://blog.taylorguitars.com/using-a-guitar-humidifier-and-other-guitar-humidity-tips
The bottom line on my beloved PS acoustic guitar is that with the three humidipaks, the top neither swells nor sinks. The frets don’t sprout. Everything plays like the day it arrived over 4 years ago. I’d much rather have my guitar be at 55% in its case than even 32-38% in my humidified room, because even the upper range of 38% is below the acceptable level.