Nope not at all...at 14 I was 5'4 115 pounds so I wasn't at all a big guy or anything. I threw pretty much moderate speed (I never real tweaked the speed that much unless it was towards the end of a tournament and the lanes were all dried out and I had NO other choice but to throw faster), I prefered to change hand positions and how much rotation I got on the ball before I messed with speed.


edit: also, 4 or 5 years ago I don't know if it is today but the 14 lb balls had the same core as 15 and 16 only thing that was different was the rg and the rg differential (if those are even still marked on the boxes today or used for drilling)