Yes I personally do. Am not a fan of the black amnesia, use the clear a lot in 20,30 and 40lb versions. When I haven't got maxima chameleon. The black is totally different, doesn't knot well at all and find it very string like, very similar to F1 black.
Was in Scotland near Arbroath, using 40lb black for my snoods and people either side of me catching. I couldn't buy a bite, after a hour of this I changed from black to clear and first cast into a fish! Could just be coincidence but has put it in the back of my mind from then on. The clear and black are almost totally different lines.