I need some help from any one out there who owns or knows about the Red Max EB7000 blower. Red Max's literature claims that it has an air volume of 730 CFM. Where is this measurement? In the housing or in the tubes? If it is in the tubes, then this blower would be awesome. However, I find the figure hard to believe since the Shindaiwa EB630 and the Echo PB650 both have air volumes of 613 CFM and 630 CFM in the tubes. Both of these blowers have similiar engine displacements to the Red Max (62 or 63 cc). I have e-mailed Red Max for an answer but have yet to receive one. So, what is the truth? Thanks.