That "SS" pad is tough to overlook. Good power, and it looks as if its heat range is workable for both street and track.
I had a set of the SRJL-X pads for the earlier generation zx10 caliper. It looks like that specific pad has been discontinued....but that pad was to die for. Super expensive, but its performance was stunning.
I felt bad when I used my brakes just because I knew Id never buy another set ($$$) and I did not want to wear them out.