In article ,
John DeBoo wrote:

One should understand that an RCH (Red C-hair) is the smallest unit in
this dimension. It takes something like 20 RCH's to = 1 CHVBG!
John

That would be about 200 RCH to a Tad then.

Okay, now we're getting somewhere.

The reader with the .004 measurement may have had his calipers on a
small braid.