Claw-hammer all the way :music:
That's what I expected out of a banjo uke, but the one I bought, as well as the few others I've tried, don't do clawhammer in a way that suites my taste--just not enough sustain after the initial bark of the hammered string. I much prefer standard ukuleles for clawhammer.
Where banjo ukes excel, for me, is on jazzy, strummy, ragtimey, dixieland stuff. Needless to say: YMMV.