BPB10 and 11 have long fairways perfect for hitting back and forth. Using the reverse green view you can see down the fairway to aim backwards.
Take your clubs, one at a time and figure out how far they fly by turning the volume up and listening for the "thump" when the ball hits. Watch the shot yardage as you do this and you will see the exact distance the ball lands at. (You will need to make sure your club audio is on, done through the Options under the Menu tab in the game.) Then you can see how far it actually rolls out. Do this with the various shot options and you will be able to map your clubs' distances fairly easily. Give each club at least 4 swings (2 up and 2 back) before you come to a conclusion.
If you opt to practice at SA be warned-those hard fairways skew the numbers.
p.s., In reference to your "cheating" thread, this is how the good players cheat.