Wait human skin on mice, how does that work, they cut off a patch from a mouse? If that's the case then that's pretty good for their success rate if they already did it on human skin isn't it?
Do you have a source for Tsuji not really cloning hair? I couldn't find a source.
As for all the people who say cloning hair on mice has been a thing since the 1980s I spent over an hour and found no source of that.
Also, I hope Dr. Terskikh is able to do everything himself and that the histotechnician is just for repetitive work he doesn't want to do himself. I'd be horrible for their timeline if they're stalled waiting for one.