ScottHope:
To quote Ms Fish, it's the percentage of the ball that is covered by the rough.
Scott, been away for a bit so decided to see if I could still post replays etc and the link on my messages says you took it off from u - tube.....wasn't re enforced in my head so I'm lost again :((
Andy
And to the OP it depends on whether 1st o 2nd cut......around greens at 30/40 go for + 4yrds...40/50 +6 yrds, u won't be far away and then fine tune.... , many variations on courses and yardages.