Hello Mr. Wendler!
I will begin by saying that I really enjoy your programs. Nothing I've tried in the past has gotten me further in my lifts.
I am training for a Strongman competition and need more conditioning. I was contemplating the notion of adding about 5-10 heavy Kettle bell swings in between sets of the 5/3/1 and 5x10.
My question is if doing this will negatively effect my subsequent sets? I was thinking by keeping it to 5-10 so that it shouldn't over-fatigue me where I cannot complete my sets and set a PR.
I got the idea from Bud Jefferies in his book "I Will Be Iron" and thought it might work (making sure credit is given when due).
I appreciate any insight you can give on this.