If what you say is true, that there is no difference in the shot due to the lie (and I have no reason to not believe you), then that means 2 things to me.
1) I have been getting extremely lucky with the adjustments I have been making...
and 2) that, when you have the EXACT same shot (yardage, club, wind, swing strength, and impact) and get two or more wildly different results, the game engine is flawed.
If the game engine is flawed then it is NOT the most realistic golf game on the 'net.
Both facts above are disturbing to say the least.