Every one or two month here on the BHO the question pops up if you can (or are allowed) to play clawhammer on a resonator banjo. The answer is always "yes" with lots of historic examples. I very much like this example, Molly Tuttle clawhammering a Mastertone-type flathead banjo, a Huber I believe. Shows how well also such a banjo is suited for this kind of playing.