the grip on the new F3.0T is definitely longer than on the bio 300T and has enough real estate for a 2hbh.
agree that this frame has a much crisper feel and that the string bed is both livelier and the ball comes off faster than the bio 300T. also agree that shock absorption is very good and the frame is arm/elbow friendly.
the feel is 300tour blended with babalot aero pro drive. the bio 300T has better flex and ball pocketing but the F3.0T is more stable in stock form and they have definitely fixed the upper hoop problem. still, i have added lead for added drive.
i am still staying with the bio 300 tour but will continue play testing the new version and tweaking.