I don’t know of anything public specific for the engines.
Technically it shouldn’t be public if you read the distribution statement on the cover. ;). It’s just so outdated (avionics wise not aircraft performance) no one cares.
Not 20 minutes.
Early videos also said you could change and engine in 8 hours. The best I’ve ever personally seen an engine changed was 14 from start to finish to include engine trim and ops checks.
Flying tonight with one harrier in the misison and three A-10C's about 1 hour into the mission (1:15 in my twitch video linked here) you can see initially the A-10 closest to me appear to bounce up and down (not doe to flight control input) then it appears to bank (1:18 ). Verified the other individuals saw the same thing. As soon as I got out of the Harrier and into an A-10 everything seemed to be okay.
Track file was to big to add as an attachment, uploaded to my google drive here.
You may want to check your facts, I know a couple crew chiefs in the 163d and I know for a fact at least some had the pave penny pylon on them still. The attached picture is from a friend when it arrived and he was assigned the DCC.