hey Andy ..
i use lvl71 Nike's with Burners .. used 'em with G20's also, so i had lotsa time figuring the distances ..
dunno if this will help, but lemme give 2 examples with 125yd PW:
1. 121yds to hole, 5mph direct tailwind, 9ft elevation on green
calculation: +3 on elevation; -3 on wind, +3 for full B/spin = 124yd shot
2. 121yds to hole, 5mph direct headwind, 9ft elevation
calculation: +3 on elevation, +2 on wind, +5 on bspin = 131yd shot
just one of untold many examples .. if u wanna pick my mind some more, lemme know .. bear in mind that this is with 71 Nike's though .. i don't play any other ball