I bought this string thinking that it might give me better spin--and it does. The 16L makes for a larger ridge and has great feel, power, and control! Better than any string I have played with to date--and I have tried twenty or thirty different ones. I strung the racket at 70, yes 70, allowing for stretching for the polyester, that means it starts out at about 63, drops a little, and then hangs on at that level for a long time! Great Strings. I am ordering more today. I tried the 18, but the bite and the feel wasn't as good.
I'm a 50 yo recreational player who is learning to put topspin on. I bought this string because I need all the help I can get with spin and control. I would love to say I break strings but I don't. My daughters pro strings for me and talked me into letting him string this in a hybrid format because he was concerned about wear and tear to my rotator cuff if he strung my racquet with only blue gear. That was wise because this string really bites the ball and it takes more strength (even in a hybrid configuration) but I LOVE this string. Adds lots of control and was the difference for me in putting good topspin on. Next time I will get it strung at 59# instead of 64# to add power.