I don't understand when they have a range of 6 or 7 grams. Is that just being lazy? Are some of them 173 and some of them as much as 178? I traded a clear 173-178 CryZtal Buzzz because I had just gotten an orange one and liked the color better, and figured it would be the same otherwise. I was able to throw the clear one much more accurately, even though they are technically in the same weight range. I suspect there was a difference.
My CryZtal Challenger's too have a range, only 3 grams though, 172-174. Still don't understand it, but it makes less sense that all 3 of my CryZtal Buzzz's are 173-178 and both of my CryZtal Challengers are 172-174. I've never seen different for these discs.