I'd estimate it's about 15% of what decides winning/losing... yet you look at the first page, half the threads are FHs. you look at the amateurs out there, adults or jr... in your local club or on youtube... pulling to the left or hitting forward is the last thing these amateurs should be worrying about... usually. serves are much more important - if you get a sitting duck back, ain't gonna matter you do rotational or linear FH. bh - glaring weakness of virtually every amateur video posted here. volleys - techniques are so poor, lots of people don't even dare to show them. do these people never play for score? if so, why are the elephants in the room ignored? happy new year.