Yeah it took a long time, 12 days after RR4 released to be exact. I'll try to be quicker for the next station (if I can even make it under the turn count). Correction: You can't unstagger a sinner from 3 Binding Technique, the most you could do is universally remove Binding Technique from all sinners (or clash the skill to remove it) by reaching Nelly's 2nd stagger threshold.