I have done this and it does work. I do "The Battle of Harlaw" striking the guitar the entire time. I strike the strings, which gives a sense of the chord changes, as well. I was pleased with the result! It works especially well if you turn the bass up. Come to think of it I "knock" on the guitar in some songs, such as "Reilly' Daughter". But - I want to try something new! I'm not skilled enough to really knock out a beat on the guitar and play it too - although you're right, some folks can.