Coach Sonnon is promoting a new workout program that looks insanely fun and intense! It's called TacGym and one of the workouts is called TacGym Spartan Challenge. I have not tried this program yet but I have tried 2 of the exercises from the challenge. Check it out below and see what you think.
The base switch is actually a favorite core exercise of mine but I have not done it in a while. I will be getting back to it next month after I get back from hiking in the Rockies. I know I haven't filmed any workouts in a while but will be posting new workout videos next month, one including two of the exercises from TacGym Spartan Challenge.