(URL removed due to n00bie permissions)
that should help with your core
Thanks, that looks very interesting. I'm going to give that a go.
Don't be embarassed to try yoga. Do strongman - hell try and compete, but don't get stupid with your injury and let your ego get in the way. Buy a Prowler, make a slosh pipe and put a chin-up bar in the backyard and get after it. Just modify what you do. Hell, try bike riding - you might find nervana in endurance sports.
I have thought about yoga (my hamstring flexibility is horrible) but here I confess to abject cowardice. Strongman training looks interesting (after a quick googling) I'll keep it in mind as something to work towards once I'm happy with my back. As for finding nirvana in endurance events...? I used to joke that I chose powerlifting because I could put in 30 seconds effort and sit down for five minutes!
I'm definitely open to trying new stuff, just hoping people will suggest things (as you have...)