This section is from the book "The Manufacture Of Boots And Shoes: Being A Modern Treatise Of All The Processes Of Making And Manufacturing Footgear", by F. Y. Golding. Also available from Amazon: The Manufacture Of Boots And Shoes.
To obtain the best wear, the fronts should be cut tight across, from front seam to feather, and when joined under the gusset the back should be "tight-to-toe" to prevent the back-seam going awry in lasting. Blocked fronts should be tight-to-toe, with the inferior portion towards the top of the leg. This will allow the stretch to be removed during blocking across the front.
* If this be adopted, the clicker should stretch as much as possible the quarter, cutting away the superfluous material, relying on the paste to fasten it to the stiffener.