Look at why people use more than one amp, or why it's common to split the bass DI in metal. Granted it's not the same thing, but it's still a similar idea; you're processing different frequency ranges individually.
Here's my attempt. It was also my first time trying the whole "split the bass into two tracks" thing. I don't usually like that sound, but I think it turned out alright.
EDIT: Fixed the link.
I'm a few months late, but this was a fun song to mix. Here's my take on it. I'm still not the best at mixing vocals, so go ahead. Gimme your best shot! XD