Summer is here and i feel like mixing things up, taking a break from cash games and playing some S&G's 
Been awhile but there great fun.
My main question really is how much can a decent average ROI varry between 9's and 27's? I'm wondering which are better to play. I'll be playing normal speed (10 minute blinds).
If i play 9's i'll be 6 tabling, which take like 1hr 10mins to the end of Heads up. If i play 27's i'll be 9 tabling, they take about 2hrs/2hrs 15mins to the end of heads up.
So i'm really wanting to know which are better value in terms of $per hour. I can play more tables of 27's as the action stays full ringed for longer. 9 seaters i could play more but its just when you reach 4/3 players in alot of games everything becomes quiets rushed and as this is where the money is made i want to keep my edge as big as possible.
So if my roi was 10% in 9's i'd need a roi of 13.5% in 27's for it to make no difference which i played.
How i under stand it for 9's something between 5%-12% ROI is whats sustainable. So what kind of ROI's are sustainable over solid samples in 27's? 15%-25%? Obvs roi's are varied based on skill and style, but i'm just looking for some rough numbers to determine if one format offers a noticeable difference in $per hour or not.
