I don't get what the fascination is with sharp cut offs. The IPFs have a decent cut off for me, since I still like to see a little bit ahead of me when I have the low beams on. My dad's Mercedes-Benz has a really sharp cut off, but when driving with the low beams on, I feel as though I wouldn't see a deer in my lane until I'm right on top of it. :confused1
Like I stated, the IPF housings are really nice and do light-up the road quite well. However, one thing at least for me, is being able to 'aim' the lights especially when you are running upgraded wiring and wattage bulbs. Also, if you look at the way the Cibie lights are compared to non-E housings, the area under the sharp cut-off is very bright and quite flooded w/light. This REALLY helps when driving in neighborhoods and also down long country roads in my opinion. It also doesn't blind oncoming drivers and we all HATE being blinded by people in bright-lighted vehicles.
As a side note... I think some of those high-end luxury cars have 'self-leveling lights' that can bounce up/down depending on the road conditions, going over hills, etc... and that aids at times in blinding oncoming traffic.