It is my opinion that the ERKOtyp publishers from the Czech Republic, have greatly improved the design of architectural models. The weight of the paper is very light and workable. Printing is superb. But what impresses me is the improved method of indicating folds. French and the German publishers track dash lines right across the printed surface of the model part. ERKOtyp prints a little line at each end of the intended fold with little arrowheads pointing to each other OUTSIDE the edges of the part. If it is to be a reverse fold, they print a line and a dot. You just line up your ruler with each arrowhead and score across the face of the printed part. The result is an almost invisible line with a reverse fold and a very clean break line with a fold away from you. When the incised cut is painted, the cut is almost invisible. There isn't a row of black stitches tracking across the part. Richard Vykovsky uses this folding method to great success with models such as Rozmberk Castle. (Below) Hopefully, with the surge of interest in cardmodelling, international publishers will embrace this now method.