George,

The big issue out here in the Far Soutwest has been to force everyone to use
1/8-inch mesh screens, not so much the kind of screen. The problem with the
Chinese galvanized screen is that a rock pitched in a shovel full of dirt can
rip right through. I am not so sure 1/8-inch is needed on historic sites, but
all the agencies demand uniformity and argue strenuously that 1/8-inch is the
way to go on prehistoric sites. Personally, I can see shifting down to 1/16 or
1/32 window screen when features are found (and I have done so), but not sure
it is worth the effort when not dealing with features or rich strata. Still, no
one is demanding stainless steel screens of yet.

Ron May
Legacy 106, Inc.