I am going to do the conversion this winter on my 06 ZX10R but wanted to know what makes the 07/08 ZX6R or late model ZX14 calipers so much better? Arent both the 6R and 10R 4 pad per piston? Is it because the 6R has Nissin calipers? I just want to be totally clear before spending the money. Any insight would be great.