Back in 1988 in Geelong a woman in the Sunday Night league there rolled a 267 game and failed to crack a 500 series. Her average going in to that night was 107! Never seen anything like it and probably never will again.
my first year of bowling after about 4 months of bowling I was on a 107 average and I bowled a 265 game at bundamba. Never heard of sandbagging till I was called one after that.