1. The conditions that were re-evaluated while on TDRL were; PTSD, Migraines, TBI and degenerative disc disease of the spine. I only had one re-evaluation. That company Ivan walks had forgotten about me so, I called an army department responsible for overseeing them and requested my re-eval at just about 2 years. The army took care of it.
2. The PTSD rating remained the same. It became permanant 50%.
My overall Army rating increased from 60% to 70%. I dont remember what increased. It may have been my TBI. I had decided, I was not going to appeal anything greater than 30%.
Currently, I am
USA 70% PDRL
VA 100%
CRSC 100%
SSDI
Outstanding and congratulations!

Indeed, your particular situation is "case-in-point" about the IWA sub-contractor unfortunately! As such, I may have to implement a similar strategy if IWA remains "unresponsive" during my forthcoming military TDRL re-evaluation; thanks!
Nonetheless, from a TDRL re-evaluation procedural viewpoint only, it is very pleasing to hear that the PEB rating for your PTSD medical condition didn't decrease "automatically due to the LDES PEB re-evaluation trends for PTSD" as supported by current symptomatology and validated by all available medical evidence and/or medical documentation.

With that all said, please take care, continue to get well, and enjoy life!

Thus, I quite often comment that "possessing well-informed knowledge is truly a powerful equalizer."
Best Wishes!