Sadly I had 0 success rate with my old seeds. I was definitely expecting better, the beans weren’t that old, 6-7 years. And I thought I stored them half-decent, but obviously not… I got many beans to crack their shells and push out a few mm of tap root, but none made it above surface. Just completely depleted.
There’s much more detail in my thread if you are interested in various methods I tried, everything from sterile to kelp, from tissues to straight to pucks, even tried GA3: Orloff’s bean graveyard