closing stone edge?

closing stone edge? Images

closing stone edge?

closing stone edge? Description

closing Stone (http://g603.net) edge?



when does "closing the Stone (http://g603.net) " (heat) start to happen? 400? it's been suggested that waviness can occur, when hand (http://maplered.com) polishing, if too much pressure is applied during 400. do you start to apply pressure/heat to close the Stone (http://g603.net) at 800?
thanks,
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Mike Lutz
SFA