From other threads this headspace maxim was becoming apparent, and Captain Laidler's emphasis in this thread seals it.
I ordered the Okie gauges a while back, and was shocked, SHOCKED, when my Lee-Enfields passed the GO (.064), failed the NO-GO (.067), and passed the Field (.074). Then after consideration, confirmed by these threads, that the Field gauge is what matters, forget .070. Also I may have missed it somewhere, what is the NO-GO (.067) about anyway? Long way from .074
I feel much better after prowling the archives here. Aside from learning some more Enfield-craft, having a good time getting familiar with the denizens of the boards.