It's my Birthday, so I'll post a little knowledge sharing with regards to how I've been using the excellent Gameplay Ability System in #UnrealEngine for the past two years.
Here's 24 Tips about using GAS. I tried for 34 (My age), but New Twitter Sucks. 1. Wrap the core classes in a C++ Wrapper inside your own codebase.
Even if they're just stubs, having the base C++ class you use for your blueprints later within your own code will speed up the process significantly and reduce your refactoring burden later.