Link to article on scraping with broken glass?

[Mike Cornwall]

Hunting through the archives, I couldn’t find Frank's article that describes Stradivarius scraping an arch top with broken glass. Does anyone remember where to find it? Thanks in advance 

[Mark McLean]

)http://www.frets.com/HomeShopTech/ShopTips/274.html

OK, this one doesn't mention Strad, so you might have seen a different reference - but I hope this one helps.

Second time today I have made use of my encyclopaedic recall of the frets.com pages.  If Frank ever loses his memory he can just call me up to fill in the gaps.  Lost your car keys Mr Ford - yes, I think I might know where they are......

[Mike Cornwall]

It was a longer explanation, still haven’t found it but thanks for that link!