I find, in this context, it does minimal for ab work. The challenge is far more about footspeed at this point.
In that instance, I don’t find bracing to that degree to be a significant challenge for developing core strength. When I focus on core strength, it’s typically so I can handle the loads ABOVE my current ability, so that my core in turn doesn’t become what limits me.
I’m not particularly new to strongman. Been competing in it for over 5 years, and before that was 3 years of powerlifting. In general, I suppose I just like being strong all over. Strength is never a weakness, as the saying goes, haha.
EDIT: I’ve noticed SS doesn’t include ab work. I’ve also noticed Rip, for being a coach, has coached no athletes I’ve ever heard of, haha. He’s a silly man. Entertaining though.