I have been playing guitar for 30 years and just learned how to properly attach a Kyser style capo. For years I placed it just before the fret and some strings would stretch out of tune. I always ended up putting the capo on then fine tunning it with a tuner... Now intonnation problems no more, I don't know why but last night I decided to put the capo directly on top of the fret and presto, perfect intonnation. I can't believe I did not discover this sooner.