"...stay well clear of any metal or plastic tool, the use of which, even with care, may bring disastrous results, mainly because it will be so much harder than book paper and have a hard edge. Much better to use a stiff card, for instance an index card (at the library I use old catalog card stock), heavier than the paper to be cut but not too thick, and keeping it and the book flat, address the unopened top or fore-edge with a gentle sawing motion, with just enough force to get the job done."

- Wayne

yes of course - (where is my mind lately?). An index card is what I used on the Bonjour. I stopped using rulers some time ago.

As for Gawain - I thought it sounded odd.