Old-Time crack test

[Richard Bales]

Just thought I would pass this on ...

I was asked to repair a top crack in a 1930 Gibson recently.  When the owner came to pick it up, he looked at it closely and said "Looks like you fixed it.  Let's test it."  He covered the crack area with his lips and blew hard.  "It's fine", he said.  Never ran across this crack-testing method before.