Ive used the deerbone on CXL, I find it does a good job. CXL is fairly resilient as Im sure you know and the deerbone has helped me get out a few hard to work with scuffs and smooth out any areas that have taken abuse.
I've also tried the sleeking bone, my experience is the sleeking bone has no oil on/in it so you can only use it to press in marks and smooth out areas with indentation, it is shaped well to get into hard to reach areas. To me it is a "sleek" , smooth, non oiled version of a deerbone. So the deerbone can do both if you are careful to find the right angle and surface to work with.