Oldtoolsniper,
Thanks for the nice comments.
I really do believe this lacing will hold up very well. On my last billfold it lasted over 25 years and I carried it every single day, although it was broken at the folds. I believe this lacing pattern to be stronger than the double loop I used before. The lace is also a very high quality lace form Springfield Leather. I do believe it will last me a very long time.