The BJJ for Old F***s instructional with Rob Biernacki and Stephan Kesting is available at https://www.grapplearts.com/bjj-for-old-fs/. This 7.5 hour instructional available in DVD, online streaming, and app formats and has has 6 main sections, including
1, BJJ Concepts for Older Grapplers
2, How to Use the Seated Guard Against Standing Opponents
3, How to Use the Seated Guard Against Kneeling Opponents
4, How to Use the Recumbent Guard Against Kneeling Opponents
5, How to Use the Recumbent Guard Against Standing Opponents (If You Really Have To), and
6, How to Use the Closed Guard Against Younger, More Athletic Opponents

I think grapplers age 40 and above will get TREMENDOUS value from the this instructional. Take me up on my unconditional 365 day guarantee if you get it and don’t agree!

Stephan Kesting