Call Discovery Channel! We have a discovery! After finding this, you'd hope there're many uses, but if the only benefit is getting out of that damn apartment 20 seconds faster, it's worth it. Kappa Please give me a sub 1:10 RS now. (<---edit: 1:09)

Another use: Spam clip capture (as it's turned off) before killing vlad to skip that moment where you can't do anything but stand there and listen to him talk. Just before that moment starts up, begin spamming it and you'll be able to move right away and proceed to shooting him in the head. Saves around 4 seconds.

and another use: During Jamaican Heat, crouch in the spot while waiting for Jacob to reach his spot. Skip the cutscene. Don't move Niko at all. You can aim in any direction you'd like, just don't move him. You can even zoom in if you'd like, just don't move Niko. Once the last of the three are dead, press the clip capture button. The next guy should immediately come out, as long as you didn't move Niko.

Oh man more replay abuse. I like that.

Might also work on luck of the irish? Since you get some more tutorial texts.

This also works in "Jamaican Heat" to skip the 3 or 4 tutorial texts before the fourth guy appears in the doorway on the roof.

replay stuff all the way.

Mangedamn, I've expanded on what you're talking about in the OP.