Same lighting element is in use so it would be normal useage as far as lifetime is concerned.
Don't understand this question. Pulling the stalk back flashes the high-beams. Pushing forward turns on the high-beams and keeps them on. There is only one bulb in the HID system. When the high-beams are activated a motor moves the entire projector assembly up and down. That is why there is a momentary delay, and you can hear it move as well.
Let me rephrase.
I thought that the initial lighting of the bulbs caused the majority of the wear, so I just figured that a quick flash would wear them more than having them actually on.
When the headlights are off and you pull back the stalk (hence flash to pass) it flashes for a split second instead of staying on, like most other cars. I know the projectors move when the headlights are on, but that wasn't my question.
-2012 Grabber Blue GT 6M Premium w/ Brembos, Glass Roof, HID security pkg, Rear Camera, 401a, FRPP GT500 Axle-backs, Front Pioneer TS-D6802R speakers, JHR bracket, Bondra clutch extension.
-1986 Mazda RX-7 GX - Fast Mirage 16" Wheels, Sumo Firenza 205/60R Tires, slotted brakes + performance pads. Otherwise factory stock.
-2008 Mazda Mazda3 GT Sport - Stock, 5MT.
-2004 Volvo XC90 T5 - Comfort pkg, safety pkg.
-1995 Infiniti G20 - Sold, Pioneer head unit, lighting mods, miss it dearly.