sir, kapag may projectors maganda ang cut-off ng ilaw, walang glare dahil yung tama ng ilaw hindi umaabot sa windshield ng kaharap mo pag low beam.
when I researched about HIR's (para itong halogen bulbs on steroids!), mas kita ang benefit nung increased luminance pag may projectors.
this site, taken from tsikot's HID faq has some nice pictures of projector retrofits with clean light cut-offs, as well as "plug and play" HIDs with the aforementioned glare. http://www.intellexual.net/hid.html
well, that applies kung parang HID yung glare niyang blue bulbs. Pero yang mga blue bulbs kasi, halogens with a blue coating, kaya baka kayanin ng matinong headlight aiming. Mahal kasi yang buong projector assembly.
good luck nalang sir sa project ninyo! happy new year!