Hi Eric,
The 10% off discount is one of the biggest discounts we offer, and you can't combine any discounts. So I'd suggest using that one!
The Premium Online course is a good option if you're looking to get all of the resources of our full program, but to use them on a flexible, self-paced schedule. It does still include the 9 CATs (including the Ultimate Practice Test you can take at a GMAT center) and full books and online resources, plus the Smart Reports adaptive feedback and guidance. Let us know if you have any specific questions on it.
Good luck with your studies!
Jen Kedrowski
Kaplan Test Prep & Admissions
GMAT Teacher
MBA Admissions Consultant
National Product Team Member