Fixed some annoyances and made some repairs.
One of the original shift handles were damaged from a drop and, since I was getting rid of the light switches in the handles to clean up the wiring, I decided to just replace them with these wood eggs I already had (I didn't like the external switches because the internal batteries still had to be turned on, making them kind of pointless—especially when there wasn't enough room in the shift tubes to run wires for the switches to light up and have them look cool—so I cut out the middle
man switch. Also, they were probably a little bit of a fire hazard, particularly considering I'm using no-name 12V lion packs).
Enlarged the holes for the front of the bike frame to stop them chafing the shifter cable housings (which I also repaired).
Made a front mount to support the front of the rocket body so that it wouldn't bounce due to the greater play allowed by the larger holes and to make the angle of the body somewhat adjustable, rather than whatever compromise gravity and the saddle mounts' arguments resulted in (this was part of the original plan, but it was built for a contest and I ran out of time, then the rocket body happened to stay pretty well in place, so I let it be).
The most important improvement by far (and what prompted a lot of this) was Brooks put out a limited edition B17 in turquoise, so it gave me the excuse to replace the Cardiff B17-style saddle that was hard as a rock and would not break in. Being as I originally measured out the rocket body openings for the saddle based on a real B17, the Cardiff being slightly larger, the fit was a little too tight. The Brooks is just right and doesn't rub (and is more comfortable even brand new). Just needs a little touchup painting and I haven't decided what to put on the flat spot on top of the shifters.