Out of curiosity, is such a thing as a 200 with GDP emitter ever existed? If yes, did this one outthrow the current 250 ?
I don't know if that ever existed, but if it did then it would stand a good chance at your comparison. My GDP170 almost matches the XP-G2 250. 4100kcd on the GD vs 4500kcd on the 250. That's a difference of 6 meters throw, using the FL1 standard. Basically identical. Now of course the 250 seems brighter in use, because it is, and it has a fatter more useful hotspot to me. But if all you're comparing is throw numbers on paper, they're really close.