Sustainable ROI for $11 turbo 180-mans

[mwalsh2020]

Two questions: what is considered a decent sample size for these tournaments in particular, and who has played enough of them to have an ROI that a skilled turbo player should be able to attain. Is 100% unrealistic?

So far I've played 96 of them and have an ROI of slightly over 93% but I'm not sure if I'm running below or above my expectation because while I've gotten 3 firsts I have had poor results in other ones once I've made the final two tables.

Obviously the game plan is to play more of them and see what happens but I was just looking for a somewhat accepted ROI that good 2+2ers are achieving in these. Thanks.