Not in the slightest. Doesn't matter one bit. As a fly-half, it's what is upstairs that counts.
hight dosent matter for anyposition other then second row where it is reall handy if your tall don't worry your not too tall im 15 5'2 53kg and play openside flanker size dosent matter
Height isn't so much a factor as this position as are the passing and kicking (along with game-reading) skills needed to do the job. If you look at the stats for most players filling the #10 spot, you'll see that most of them are in the 5'10" to 6' 1" even range. Dan Carter is 5' 10". So is Johnyy Wilkinson. Johnny Sexton is above average at 6' 2". So is Owen Farrell. So you're certainly not too tall.
