Part 1
Part 2
This is the best explainer we've seen on roll center yet - check out these great videos from Max Mört that get into the racing physics of why roll center does what it does. He focuses on off-road, but the principles work across all types of racing. Oh, and get comfy and make some popcorn - these two videos clock in at over 27 minutes.
Off-road RC Setup Cheatsheet

Suspension Tuning with Rear Pill Inserts

Axle Height / Hub Height in RC Car Tuning

How to Make Your Off-road RC Car Handle Bumps
RC Oval Camber Link & Roll Center Cheatsheet

Rear Roll Center and Camber Gain Explainer with The Drake

Tuning a 1/8 Scale Off-road Car for High-Grip Tracks

Weight transfer - RC Handling Guides

Jacking - RC Handling Guides

Jacking Forces & Roll Center with JQ