mike: that is in fact quite true...
however, the high heat method of case re hardening has a long negative history of misapplication by unskilled and ignorant hands. thus, some of us who have seen and handled hundreds if not thousands of guns over the years have haunted memories of fine guns ruined. two come to mind. a parker dhe with the receiver litteraly broken into pieces. then there was the fox c grade with tiny spiderweb like cracks all over both sides of the receiver. yuck!
as for the low heat method, you and others may not like how a particular job may look, but you can rest assured that the original factory heat treating and surface hardness have not been altered and the receiver is still safe and durable.
