Probably weight was the factor. My klc was only 90 grams while the alc was about 93 to 95 grams but i can definitely say when i tested both that the alc was faster.
Because it is a very bouncy blade. The only thing it differs from the amultart is the control is good.
Am i obliged to post all my reviews? I did review the klc, alc and the other version on facebook.
For me, the DNA Pro H was a good backhand rubber and does not feel too hard for a 50 degree rubber. It is very spinny and has good control aside from rhe speed.