Like the others. The high beam during the day due to most cages with lights on as well & besides I do not have a special powerful bulb.
In the evenings I slow down my pace on the hwys, back-roads & even in town. Using high when no traffic coming my way otherwise will drop to the low beam.
If at nigh it I come across a cage that is going slower then myself, on the hwy, then I signal with turn signals that I am going around him along with flipping the light from low to high & down again till I am just past the vehicle & shift onto high beams -------- latter is an old gentlemen's agreement used by so many traveleing salesmen & others on the 2-lane hwys of Western Cdn & yes it works with Americans close to the border.