Rollo, My experience has been that a piezo jobbie stuck under the head works just fine, BUT... be prepared to set your P.A. up and spend some time using temporary fixings until you get it in just the right position. If you want a really detailed exposition on the subject, contact Andy Perkins at the Banjo Shop, Faversham, Kent, UK - or find his website. He makes banjoes and plays tenor like you wouldn't believe. ATB Chris.