Are you BETTER than most of the people in the "Expert" group? Are you worried that if you sign up for "Expert" that there will still be pretenders in the group who will hold you back? Well, we do our best, but that can happen sometimes, so if you are truly really strong, this is what you do:
Request an "uber-expert" group, if you can handle all of the requirements of "expert" and you also:
The "Uber" trips may not be available to book online until you request them. It is a good idea to book these early before all of the cats are allocated to other groups - there aren't a lot of people who are up to this challenge, but for those who are, Uber-Expert is the only way to go.