See http://speeddemosarchive.com/TypingOfTheDeadOverkill.html for full comments and audio commentary.

The old time was 12:31, and all of the time save came from a faster main stage. By this point in the single segment run I was suffering from fatigue and soreness in my tendons... and obviously doing it as an IL avoids this. The other advantage to IL is that I was able to play the stage a fair number of times until I had reasonable RNG. Barring major mistakes (dropped phrases) the boss fight takes more or less the same amount of time every time.

[Note time varies slightly from SDA time to be consistent with previously timed runs]