I would suggest looking into micron papers. Grits papers have 20% with the
wrong grit. 10% of grit paper is lower, causing fish hooks etc. Micron paper
have 10% in error, but the 10% is always a higher grit, so an 800 grit error is
10% at 880 grit. Microns are for technical applications such as canopy
cleaning, medical, fibreoptics, etc. I would suggest paying 20-30% for
quality. Look into rshughes.com for more info and#'s that are close for you.

Sincerely,

Mitch Herold 303-947-7462
(V1)