Aisha: I -can- bomb past that point, but I wouldn't regain the max bomb bonus until maybe a 1/4 of the way into Stage 6, since that's the next bomb spot. Aside from that, bombing would interrupt my chain, and clearing the full streaming section would pretty much be an instant ten million point bonus; the max bomb bonus until the next carrier would likely be another 10m at the least.
Azinth: That's pretty much what I've been doing; or rather, I get forced to near the bottom during the tower parts, though shotgunning them takes them out a little quicker. It works fairly well, but I'm still slipping up too much to risk it in a real run (though I'm beginning to wonder if this is more my incompetence than it being a bad strategy).
Banana: I just tried this (as in stuck to shot and flailed about the screen like a maniac) and it seems to work a lot better than I thought it would. I'll test it more thoroughly when I'm sober. :V Looks promising, though.