No one said you were "tripping"...
I stand corrected. I just popped my DVD in an there it was, just after the staple down install! I never knew

Even though it is there, I would never use spray glue to do it. Fast bond n-10 or Parabond M-250. Only on the side of the slate and bottom for the corners & side pockets. Spraying the top of the slate??? Jay also does the install differently. I am going to assume this is because of the use of the spray glue. He did not measure the index or make marks of any sort showing a consistent and even stretch. I am actually surprised this is the method on the DVD.
Diamond uses Glens method and so do I. I can get the cloth just as tight using Fastbond n-10 or Parabond as staples. I am fairly confident that spray glue would not hold the stretch when fully indexing the cloth.
Glen will most likley chime in
Trent from Toledo