Looking good! A few little nitpicks though:
-On the Goldfish jump from the top deck down to the hull, you should be dropping down
before you pass that rope, i.e. you should go down as soon as you're through the... Tunnel? That thing. It saves time over jumping down from right in front of the helm (also you should just be falling down, jumping costs a little bit of time).
-One of the examples you gave of grabbing guns while falling was with the Junker bottom guns. If you land on top of the gun instead, you can shift over and drop onto the bottom deck itself. Unfortunately I don't have a video on hand to show this, but it's not very hard to pull off.
-The Squid circuit looks good, though you're slightly slow on the starboard jump. Here's a little guide I did a while back for how I do the circuit, though I believe the angle on starboard is slightly different now (due to changes to engine collision boxes)
https://drive.google.com/file/d/0B0fs0x_HXnzpblRrbHF6bFNVbU0/edit?usp=sharing