Poking the hornets nest, I thought I'd bring this up again after watching Chang beati Lendl on the way to his FO championship. I pulled it up to look at the underhand serve point again, but also saw the part I'd forgotten where Chang was cramping so bad he resorted to moonballs to stay in the points. It reminded me of the many moonball points I saw when in NY for this year's US Open as well. Even the mighty Lendl, like Agassi at the US Open 15 yrs ago, was pretty much neutralized by the moonball tactic. Makes me wonder about the many claims I hear on TT about how any 12 yr old Jr will crush winners off you if you dare to try the moon ball. Do posters here still think blasting winners off this shot is a given? If so, why did I see it work so well at the US Open thru the years?