Sorry you mean you just did a hot soak within the past 2 hrs since your first post? I'm not saying APC with sanforized denim will get big shrinkage but how would you be able to hot soak, then air-dry within 2 hrs?
Regardless-- if you had weight loss you'll never be able to get them to "fit" again. I had a pair of Dior raws and then loss a few pounds (maybe 6lbs) and with the waist stretch I'm swimming in them now. Hot wash did essentially nothing.
I only did one hour soak, then machine dry (hoping for a bit of extra shrinkage).