you might want to combine several bumper bars. Put one in the front as wide as it goes without it going weird, then another on the side (and mirror it) and place & scale it so that it connects to the front part. Might also need a third one between them. Could also be that it's just not possible to make with the fixture & body combination you're trying to use and you're just gonna have to do a bumper that doesn't wrap around. That's a bit of an annoying limitation of how the fixtures work and not much that can be done about it.

well until later in development in hopes that they fix it.
thanks, will keep trying different things out