Biggest problem I have playing sixers is remembering to mute random ringing strings. Fret wraps are, I find, useful. Just discovered this thread, and oddly enough, have been playing a six string bass for a couple of hours this afternoon. A wide and padded strap is another must in my view, and don't wear the bass too low or you'll risk destroying your wrist on your fretting hand. Other than that, immense fun to be had playmates. 🙂