I guess I've always been lucky, I have No problem with the HIDs seating or compatibility with the housing, the only thing is that they suck so much juice the lights in my DIC and climate control flicker when at full dash intensity. But besides that their (The Hid beams) are technically regulation as so they do not bother other drives, I'm just a bit ocd as to where I would like them pointed forward but down as to not blind drivers in front of me, it actually gets under my skin having more light being produced on the right then being evenly distributed in front of me... sry