Whassup DP3!! Glad to know you're back throwing the rock!
I know this doesn't help your original question any, but I remember the long drawn out conversations about the cover differences people were seeing in the original Cyclones when they first came out. I wish Ebonite had just told us they were hybrids back then. It really makes sense now, especially when you think about the color aspect of each ball. Quite naturally a black/gold/silver ball would have more of a pearlized reaction due to the luminescent qualities of the colors themselves.(gold & silver in particular) While my rainbow Cyclone always acted more like a solid, indicative of the bright, thick colorings they used for that ball. Just an um...hmmm moment for me!