I don't think that you will have more fish in turbos then in hyper-turbos. You might be able to generate a bigger edge in Turbos because you will play deeper much longer and the push or fold decisions come later. I do not think that it really matters if you play $7 hyper-turbos or $15 Turbos after all. If you play turbos your ROI should be higher then if you play hyper-turbos BUT you need more minutes / game (with single tableing you might get 5 to 7 turbos on average versus 15 to 20 hyper-turbos on average) BUT since most players use a 50 BI BRM for Turbos and a 100 BI BRM for Hyper-Turbos the fact that you might play twice as high a level ($15 turbos instead of $7 Hyper-Turbos) does balance your volume (in combination with the lower ROI/game you have on the hyper-turbos) pretty much out and your hourly is about the same.I actually once did calculation on excel spread sheet and with a volume of 5 Turbos / hour and a ROI of 5.5% and gold star RB this would generate a hourly of $4.66.The hourly for single tableing (20 tables / hour) the $7 hyper-turbos with an ROI of 3.0% and silver star RB would generate a hourly of $4.60.So it really depends on what you prefer only.

Those numbers are nothing more but assumptions. Of course there will be player with higher ROIs and players with lower ROIs but just because some pros did achieve 7-8% ROI, does not mean that you would achieve this too, right?