OP

Quoted from TractorDoc:

I've given my situation some thought. I think I've come up with a good compromise for a solution.
After giving the playfield a stare down from many different angles I've decided I like the blue bumper in its current location. If you look up the playfield from the player's perspective I think the blue bumper is a nice contrast to the red flasher lenses that your eye follows up the ramps. A red bumper cap just sort of makes it a long chain of, well, red. The blue bumper also ties well into the blue path under the spinner on the playfield.
In theory I can still get the message on the DMD to correlate -- all I have to do is swap signal wires on the legs of the blue and red bumper lamp sockets. Much easier than swapping out the entire bumper assemblies at this point, a better looking layout to my eye, and one more little custom touch that makes this game "mine."
Thanks again for pointing this out to me!
EDIT: As I'm thinking about this more, all I really have to do is swap the wires at the connector. . . even easier than desoldering/resoldering!