Hey there, I'm dropping in from the SDA thread. I'll be following your progress and will be willing to help out. I believe I'm up to date with pretty much every shortcut and timesaver in the game.
Concerning the spawning of enemies, UCPro wrote this on SDA:
"EDIT: here is a video showing the manipulation of the enemy spawns in the second wave. Just to point out, doing this saves 3 seconds.....it is 3 seconds faster than the fight i had in my segmented run (both fights had the same level of execution). After killing the last enemy of the first wave, watch where i move the prince too....when i get to that specific spot (anywhere in that general area is ok) i switch to first-person view and face across the room. When i hear the enemies spawn, switch to landscape view and you will be right next to an enemy (100% consistent).
"
And the video:
https://www.youtube.com/watch?v=C0Utj3oUyeg
Hope that helps! :)