Wow, I hadn't explored much of the site. That's really quite fleshed out. I'd be really interested to see how you actually accomplished the bouncing lasers and so forth.
My intended game is something similar, but it would be based on an old 3DO / PSX game, Return Fire. It's 1v1 capture-the-flag with 4 distinct vehicle types, and I can see it translating well into a Starcraft 2 map/mod. I'm very new to the editor, and decidedly unfamiliar with anything outside triggers (because that's all I used in StarEdit), so I'm collecting information for the "hacks" and deep-down modifications required for this control scheme among other things.
Incidentally, I noticed the main difference about halfway through the video when Bump was rapidly changing from left to right directions. Seems the one on the right (triggers) worked differently there. Triggers Stalker moved mostly to the left and Data Stalker moved back and forth appropriately. This could be the result of lots of different things, but my guess is that, as someone mentioned before, the triggers are run less often. So while Triggers Stalker still moved both left and right, it actually did both in one "trigger pass" and so the movement to the right didn't matter.
Anyway, it's sort of a moot point because you'd have to be entering commands at just the right rate to see what we saw there, but it does seem like the data version is a little better in that demonstration
Also, BumpInTheNight, can you give us the source for your earlier video's map with the laser-shooting stalker? That has several things in it that I want to implement, such as the click-shooting.