Theories: who did Unicron turn into who?

[Sinnertwin]

I'll post this link again in case anyone missed it. The TFwiki page on G1 Cyclonus in the G1 cartoon continuity dedicates six paragraphs into the problems with Cyclonus' former identity. You fine folks know how to follow a hotlink so I'm not going to post my own spiel which would be nothing more than just rewording what's already stated on that wiki page (you can read it for yourselves).

Here we are, plain as day, Bombshell being reformatted into Cyclonus while dead seekers float in the background

Here's the link to the storyboard from which the animators worked off.

The "because Bombshell's in front" isn't a great argument because directions in space is completely relative.

But not from a movie making/audience point of view. You're not going to introduce a new character by having them standing in the background. Our eyes are drawn to the objects at the front of the screen making them a point of attention.

And how do you know it was Bombshell and not Salvo or any of his other clones?