less power, more sluggish through the air but no slouch either, better feel - more flex.
they are all really great frames but with each generation the frame has gotten a little stiffer with a bit more power but less feel. the F 3.0 tour is the most different in feel and the ball comes off of the stringbed faster. the 4D 300 is the most classic in the feel department
agree.....I loved the feel of the 4D 300 and 4D 300T. Nice flex and sweetspot hits feel very nice. There is something off to me with the new Dunlops...they just have a "tinny" and "hollow" feel to me and the sweetspot seems really small in feel.