It is 8 minutes of time save, I have already done it in a run :)

Sorry for only just replying to this, but wow amazing find, just checked it out myself, it saves a ton of time, I am going to have to go for sub 2 hours now, thanks a lot for this find!

Hello all, been watching speed runs for a while but would like to join in the fun sometime. Used to play guitar hero competitively many many years ago. Maybe there is someone who remembers scorehero here :)