Diastasis recti and Tupler technique

Collinsky

Last year, I worked pretty hard to get my diastasis recti back to almost normal. I avoided regular core work as much as possible, did a transverse ab exercises, standing ab work, and I splinted any crunches I did. Once I got my abs to within about a fingertip apart, I started doing regular ab work. However, I still get the "football" bulge at the site of the separation when I do many common core exercises (including planks), even though I'm within the "normal" range for diastasis.

I'm wondering if that's just par for the course, and it's okay to keep going without worrying about undoing my hard work..... or if I need to continue avoiding almost all core work until that weird bulge doesn't happen anymore, even though I probably won't get the rectus abdominus any closer than that no matter what I do? It's considered healed at this point.

I'm looking into the Tupler technique but I'm not sure about it. Has anyone tried it?