Some revisions
My my such an old thread and man was I clueless at the time.
The CS does not use a brushless motor it's a brushed motor made by Johnson Electric there were rumors that it would be brushless and I think it having the brushes near the front of the fan case only fueled this rumor.
Also my assumption of 42 cfm is far off. The methods I were utilizing at the time was based off bad assumptions created by a poor understanding of the airwatts formula.
Here you can see how the Tristar MG2 does. and I also have measured a CS but unfortunately I have little data on the EXL other than knowing it does indeed have more flow than the MG2 not 3x as much granted but more than it.
Now I don't know if the EXL surpasses the CS or not. Do keep in mind the longer your hose is the more airflow you'll lose.
The measurements I had gotten for the CS Were:
Hose: 90.41 CFM ~67"
Wand:85.29 CFM 63"
Head: 68.33 CFM ~16"
[MEDIA=youtube]lEIxh-xsgxA[/MEDIA]
[ATTACH=full]154476[/ATTACH]