Apparently OSLS is out of stock on their high-efficiency magenta dichros, so I'm looking around elsewhere. I need a 1mm-thick dichro, cut down to 8mm by 12mm, that'll pass blue and reflect green. Apparently the Casio dichros are almost what I want, and they're damn cheap, but only about 87% reflective of green from what I've seen. Does anyone (a) know how thick the Casio dichro is and/or have some to sell me, or (b) know where I could get something more efficient?