Yeah I played a moderate amount of 9.9, and have a cacodemon-sergeant 9.9.1 profile at home, with something like 7 wins to 60 deaths, have a completed Angel of Pacifism and Angel of 100 on that profile. Never managed a FW, never got the right combination of invulnerability + nuke.
I did a clean download at work, and managed to win my first 3 games, absolutely no quitting before defeat. Considering the second was my first ever markmanship win, and this my first ever berserk win, I'm very pleased. I know from experience that playing with the sound off (as I am at work) is much much harder. Hence even more pleased with this and the other one.
Sadly my 100% plan/win ratio has dropped off with a dead Shotgunnery run at lvl 22 (no sound = not being able to shoot out of visible area scouting), I stupidly tried to take on the mortuary when I should have just grabbed the easily available items and left (I didn't realise homing phase devices would only take me to one of the four exits). Then two failed HMP attempts, and I'm part way through an Angel of Red Alert run now)