Last year I toured the Hoffman facilities in Bali. They were in process of changing the way the pre-cuts are cut. They used to be all hand cut , but because of the number of complaints about the lack of accuracy .. they had purchased machinery to laser cut the precuts ( very impressive and I am sure quite expensive ) . There are still a lot of the older precuts out on the market.
I commented to the plant manager that the inaccuracy was a reason I avoided precuts. I also noted that the old labels said "hand cut" and if they wanted the buyers to know they had changed methods of cutting they should change the label.