Sorry to bring this topic up again, but I was reading through 5/3/1 For Powerlifting and in there you mentioned in a few places on using Strongman training for conditioning purposes (pages 22, 40 and 84). On page 22 you get more specific and mention tire flipping and farmers walk for conditioning.
You do talk about prowler, hill sprints and weighted vests walks much much more for conditioning in 5/3/1 For Powerlifting and nothing but prowler, hill sprints and weighted vest work in 5/3/1 For Raw Strength and Beyond 5/3/1 so it is obvious that is your prefered method for conditioning.
I dont bring this up as a "got you" nonsense. I only bring it up because maybe you have a specific way to use tire flipping, farmers walk etc to use a conditioning method with 5/3/1.
BTW, you are so right that Prowler work is awesome, I am going to put in some overtime at work to get a prowler for my home gym (I might get the Rogue Dog Sled because it is a smaller footprint to use out in front of my house in the street). But right now all I do have is a 500lb tractor tire and a few pairs of homemade farmers walk bars (1" and 2" grip).
Thank you and sorry to bother you again with the same topic.