Some things you should do:
Kill 2 guys on catwalk by shooting super dragon downward (Get it off first super dragon guard via disarm or tranquilizer).
Explosion kills + get a boost.
Don't rely on reflex for Jon letting you through hole - pause, pause, pause... GO!
Isn't it faster to strafe into the wall so when you can break the wall you have full speed?
I know you lose time for reacting to Jon, but that is made up with having full speed afterwards.
About Deep Sea, Taka: you should pause/unpause/pause/unpause till obj. 2 completes. Notice how you lose a bit of time opening that door. Also, you didn't make that turn (before the last teleportal) very smoothly.
My first room is different than yours too. And why did you wait for Elvis outside the obj.2 room? Dunno if that makes any difference, but I wait for him inside the room. Sometimes he's very close to the door (after warping). So yeah, it may be faster to wait inside the room, though I'm not sure about that.
Edit: use the CMP150 to kill those 2 guards right before the tunnel, it's faster.
And why did you wait for Elvis outside the obj.2 room?
この部分ですね<SMFさんへ
The Perfect Dark Country Elite Rankings
が更新されてますね・・TAKAさんのみ<日本
他者が入るとランクが下がる感じですけど
BBさんがアメリカ、YEさんがオーストラリア、
Lecさんがカナダ、STさんがイギリス、
Narigutitaさんがブラジル、WJさんがオランダ
と判明かな・・