Ordered a big piece of museum acrylic, pre-cut, and was told that because the saw blade is 1/8" wide, they can't guarantee it'll be the requested size. (And then there's the way it can break wider at the back than the front.) I suppose we can route the frame out if this comes too big, but really don't want to. What they said makes some sense, but I sure wish they could adjust for kerf when cutting. Is it that inexact?