GG's --

Randy Roeder in his request for blade help with his infilled plane remarked
(highly snipped)

... my Norris A-5. The plane is one of the later production models with a
gaping mouth....

Matt Turner then mentioned in his response (again highly snipped)

...I've got a Spiers infill coffin-body smoother that probably fits the
description of "gaping mouth". The mouth itself is .313"....

My question then being why would these "gaping mouthed smoothers" be so
highly prized for final finishing in light of the our efforts to it as tight
as possible?

Thanks,

Lew Soloway

-- not wanting to start a holy war, just wanting an answer. I have one of
those "gaping mouthed Norris A51's"