Beast (with Jr Stryker and Baby Stryker) takes you through a call and response follow along through 3 different arm pattern techniques. This ~20 Minute class is sure to give you the level up you're looking for.
Song: OG Rulez by Big Rulez
 
Recommended Classes:
Arm Patterns: V2
Drills: Arm Patterns
How to Lab: Arm Patterns
Beast | Sample Class
Tight Eyex | Follow Along
Bounce Lab | BDash