mtn0417, what happens is you'll apply to the program. you get an interview offer. you go and let them know you're interested in BOTH the categorical and advanced spots. but then when it comes to submitting your ranking to ERAS, you can put all the categorical spots (1-10 for instance), and then start #11 with Mayo (for instance) advanced...and so on. it's much easier to explain in person. see if one of the residents around you can do it.
OR, if there's a particular program you want to match at no matter if it's categorical or advanced, they'll be your #1 & 2 spots in your rank.