If you're not reading Jim Wendler's blog regularly, you may have missed this guest post.
Ryan Vance, competitive strongman, posted about using the 5/3/1 program.
What's so special about this post? The 5/3/1 program is at least originally aimed at powerlifting. Powerlifting is a 1-rep max sport, ultimately - you're judged by the best weight you can lift once. Strongman is much more mixed-mode. You need power, strength, strength-endurance (ability to lift heavy things repeatedly), and endurance. The efficacy of the program in building not only maximal strength but the ability to lift things repeatedly, then recover and do it again, is demonstrated by Mr. Vance's success. It shows what a versatile program 5/3/1 really is.
What was that about the Prowler? Mr. Vance's post also mentions using Jim Wendler's three prowler variations. Here they are, over on T-Nation. All high-handles only, rotating intensity, hard Prowler pushes.