FTFY:
elce39: It seems rather odd, that when I(!) play game and get a score of 5 under par, I only get point 1 knocked off my handicap.
First of all, change your POV, go to gross numbers.
Your average is 69.61, your last scores were 40, 65, 67, translating to 80, 65, 67.
80 devastates your average unless it's saturated.The other scores would only cause "mild" movement. Assuming 300 Legend rounds,
65 => -4.6/300 = 0.0153 => 0.01 or 0.02 knocked off (remember rounding),
67 => -2.6/300 = 0.0087 => zero or 0.01 movement down.
As a hint, you must learn the law of the big denominator, and patience ;)