Well, I figured out how to get my bezels on the second monitor with RL... What I ended up doing was copying my entire RocketLauncher folder into a RocketLauncher 2 folder, then setting them up as two separate emulators in LaunchBox... the RocketLauncher 2 is set to display bezels on my second monitor (since RL doesn't have those bezel settings per game). Now I just change between the two in LB per game, depending on which monitor I want it on. So, I can use RL bezel packs, and the style I made, above... as well as the default cropped vertical style in MAME.
Here's one I just finished for Centipede. :)