This http://www.amazon.com/Mel-Guitar-Technic...uitar+technic#_
is an excellent book that includes that exercise plus a lot of other guitar technique exercises.

I have had a copy since about 1963 and in fact just had to order a new one as the old one was worn out.

This is one book that should be in every guitarist’s collection.


Back in my day the only time we started panic buying was when the bartender shouted "last call"!

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware