And day summary: Final boss still unbeaten on MAXED, but I too tired today and my 6 short evening attempts view more like boss mastering fast player farm...
No new bugs, but I got invisible pistol one more time, and have no ideas how :(
I still not found some secrets and not re-finished the game, but see no major problems other than related to my own ammo-preservation.
I won't have much free-time at work-week, but I planning continue 100% secrets walkthrough and attempting to kill final boss on MAXED(I though after latest fix it's not so hard) and may be other bosses.