Hey Charles,
Jcurls are great. We load the spine in flexion all the time with movement. We just don’t always reach for the Jcurl first. We tend to see people lack hip flexion and then use their spines instead. An old Rolfing skill is to sit on a chair and curl down unloaded. We also warm up with flexion everyday like in Yoga. Fold over/round then go flat from that rounded shape. Even teaching kipping is great, or rolling pistols. Or short lever hip flexion like deep relaxed squatting. As for “loaded” stretches, it’s one of the reasons we use weights/bars and bands on nearly everything. Adding a vector load makes it loaded (ant band distraction on hip for ex). Also, ANY isometric with body weight is loaded. Kelly

Jack,
Believe me when I say: Juliet and co are savages.
And
Thank you so much for growing with us and being patient with us.
This whole thing works because of our insanely talented family.

Kelly

Anon!
Great question. Keep chipping away at the local treatment. I’d highly recco Brian MacKenzie’s great course, Art of Breathe. He has an App called STATE as well. This will be the most powerful way into the brain. And it will give some real input into your spine/Cns mechanically. That will be the base of getting ahead of that high tone. If we saw you in person in SF, we’d teach you the same.
Kelly