Bob, they are at least 50 "production runs" between now and all the egg production runs etc....from the time they noticed the drift. The only thing that might skew the estimate is refrigeration. Still... repeat repeat repeat. Even if half that number, mass production runs are proven. Might take more time to breed out fibers outside the desired range, or they already have. Either way, the protocols will catch or have already caught the weak links. Time will only improve outcomes...while there has been all this back and forth talking, they've been breeding.
The only thing that will convince some folks is the same thing. Time. With MS, it shouldn't matter as that is likely strictly for mundane uses. Now they apply what they've learned with near pure SS, and oh yeah keep trade secrets quiet....
Whether they purchase a new factory all together to make near pure SS,(NiPSS?) or start a new strain at Prodigy, I'd bet there is less difficulty with out of range drift. Again, time will tell.
I haven't had any luck finding our patent app in PAIR's yet.