renniw52: I have not shot a round where my avg. driving distance has been less than 310 yards. My stats still say 292 avg. All other stats have changed. No big deal, just wondering why.
After some sleep, here's some help for you my friend.
As YJ pointed out, the law of the big numbers strikes again!
With 2,100 rounds played and a (round) average being displayed as 292, the difference of 18 yds created by a 310 yds round will influence the average by 18/2,100 = 0.009 yards.
110 + a safety margin of 40 = 150 rounds are necessary to raise the average by one yard!