What about static pressure?
Doesn't the static pressure capacity of the dust collector's fan play a significant role in its ability to pull in dust or chips? A 400 CFM fan with a static pressure capacity of 1" will not be able to draw as much dust as a 400 CFM fan with 3" of static pressure capacity. This is where the design of the dust collection system (i.e. the static pressure generated by the equipment, hoses and ducting) relative to the CFM and static pressure capacity of the collector is important. Correct?