Kimber Select 3033 versus 3035 and 3038

I just tried a pair of Kimber Select 3033 speakers cables in my system. All i can say is WOW. I had actually borrowed a pair from a friend of mine. My question is does the 1035 provide a significant upgrade over the 1033?? If so, what characteristics seem to improve. How about the 1038?? Both are significantly more expensive . . .