Add variety to ship loadouts, and particularly team loadouts, by having a checkbox in the ship customization screen to mirror the whole ship port/starboard. Shouldn't take much development time.
http://www.youtube.com/watch?v=MXcLybhbChQ would be possible with galleons because you can now have a team of two with reverse mirror. You can make the strong side face toward each other and make deadly passes, or travel together with your weak sides in the center so you can always have a light gun shooting no matter where the enemy comes from.
Very interesting on Pyra, Galleon, Squid. Less so on Mobula, Spire, Goldfish(but engineering is definitely different), almost inconsequential on Junker, except moving the pile of crates.