I didn't exactly understand the Caveat against the TIG repair of the hook. I have been under the impression that brazing had a higher melt point than did Silver Solder. Maybe I misunderstood what the poster said on that , but I recall him saying the lug was brazed rather than Silver soldered thus couldn't be TIG'd. The Tig is actually hotter than either but if the person doing the TIG knows what they are doing they shouldn't melt either as the TIG heat is concentrated at the repair spot & can be kept from spreading into the joint. I Do not know Stan personally, but I am of the impression he isn't going to let anyone ahold of this gun who doesn't know what they are doing.

Miller/TN
I Didn't Say Everything I Said, Yogi Berra