If you follow any of the FB pressing threads, you will see what is going on now in the hobby and specifically in the CPR field. The new chemical treatments and light exposure "cleaning" books means that sooner or later, I will end up with one of these books. I would like to avoid this, but I am not sure that will be an option. What will it look like in 5 years? Will the paper deteriorate? It just does not seem right. Regardless of whether if CGC can detect or not, how will this chemically cleaned book react over time? 

It just does not seem like a good thing.