So I tried ZM62F today, my first impressions are mixed. Like others have said the feeling isn't there, but the power is. It wasn't that I didn't get good shots, at the net or in the rear court, it was just that the impact didn't feel solid. Usually when a string is damp and has no feeling I struggle more with my net shots (will hit the tape a million times).
I think the biggest 'no' for me on this string was the rear court control. For whatever reason I just couldn't get off a good reverse slice drop with this string, maybe it's not grippy enough for me.