J: Your average most certainly wasn't 71.36 when you wrote your post. It must have been 71.2 then and has moved to 71.12 after your post.
Sorry to contradict you, Mr. S (and a friendly Hallo! after your long absence from the forum), but it was the very 36=72 which produced the move though it was higher than the average itself. I suggest that you seek information on the non-linear characteristics of the saturated average ;)
J, all your TP scores are still in the score history, from 33=66 (2x) to one 45=90. The best 25 scores which now form your average go into the 74 range.
For the last 15 games before the last, you have shot between 74 and 84 and none of these could rattle at your average.
Before that, on Saturday, you had a 34, a 33 and a 35 which will have moved your average.
In conclusion, you now have 4x 74 to undercut, then 12x 72 and so forth. But don't worry about that because your goal is still far away, 67.00...
But, it's insane to stare at the average - it will move less the further you get!
Instead, may I suggest you to concentrate on the game and on the views and on the fun and just let the average happen!
Hit it straight!!