alosso:I'm going with around 260.
I agree.
My sums start with you having played 256 rounds before the three listed.
256 rounds with an average of 67.3 = 17,228.8 strokes
(Round 257) + 56 = 17,284.8 /257 = 67.256 (67.26)
(Round 258) +60 = 17,344.8 /58 = 67.228 (67.23)
(Round 259) +54 = 17,398.8 / 59 = 67.176 (67.18)
This would mean your round after this would be your 260th. If you want to check this is roughly right (it's impossible to be absolutely precise, and it's not or you wouldn't have .8 of a shot, for the reasons alosso has given) add your score to the 17,398.8 and divide by 260 and keep doing that when you play RR.
alosso:
-20 shots from the first score (expelled score of 76 = 38),
-15 from the second (75 or 37 or 38),
-15 from the third (69 or 34 or 35).
(due to rounding the third decimal, scores may vary by 5)
This would mean that you are just saturated - quite improbable, methinks.
On that I agree with the conclusion, but I think he would probably need to be a bit into saturation.
He has an odd mix of scores; these scores (38 etc) are are fair bit lower than at least a dozen in the recent score history (which I now see includes a 54/108). Bearing in mind many scores on his list are Bop3, if this continued throughout 500 RR's he'd have a lot of big scores to discard.
As (I think) I said in an earlier reply he'll know when he hits saturation as his average will tumble (relatively) for a while. Playing a mix of rg's from windy UEL to no wind easy 9's I've had this happen, although not to the extent he will.
alosso: If it were saturated, you'd have to strip off
I think that rule only applies to Icon ;-))