Playing some SNGs

Just lately as well as playing some Zoom I've been in the tournament mood, and have been playing some SNGs ($3.50 18 man games). Now that I've cashed out most of my bankroll the micro level sit n go tournaments seem like a pretty good bankroll builder judging by the sharkscope graphs and the general playing standard that I've come up against.

The positional stats page in HEM shows that I'm making a lot more money (in terms of bb/100) from each position than I do at cash and I think that this is a combination of the weaker standard and a good slice of run good. I actually believe that I could end up with a win rate somewhere between 5 and 10bb/100 (chip equity of course) in these games which should get me a decent ROI. Of course ICM is more important, but it's much less easy to judge how I'm doing in terms of tournament expected value. However I am checking my hands after each session and I don't think I'm making nearly as many mistakes as my opponents, which is all I need to do at these stakes.

Right now (over a very small sample size) I'm cashing in each of the money places around 7.9% of the time which would net me about 30% ROI if these figures were sustainable but I don't think that they are. The following chart shows the projected ROIs for a few of these different frequencies (note that this isn't the total ITM frequency but the average frequency for each of the four cash positions).

Avg Cash Place % ; ROI ; $/Tourney
6 ; -1.8 ; -0.06
6.5 ; 6.4 ; 0.22
7 ; 14.6 ; 0.51
7.5 ; 22.7 ; 0.79
8 ; 30.9 ; 1.08

I don't think much over 8% or 30% ROI is possible (although I'd love someone to prove me wrong) but I think around 7% should be sustainable over a large sample size. Given that I play around 9 per hour this results in a potential earn of around $4.5 per hour not including rake back. I think that this is better than I could achieve at penny stakes cash (even in Zoom) so I'm planning to get through some decent volume at this format and I'll put up a thorough stats post once I've played like 500 or something. Hopefully my guestimates are somewhat accurate because that's not a bad return given the tiny investment.