I don't like the high beam on my Ultra - just something about it throwing shadows ????!! Guess I should try out that orsam bulb Glider has talked about!!
Always on! More light the better. Sometimes I think the cagers are out to get us. I try to eliminate the "I didn't see you (EDIT)" I would mount a laser beam if it helped.
I've never turned mine off from the day I rode the bike off the lot. Now that I run an Osram bulb I'm way more comfortable running high beams at night, much improved over the stock bulb.