| Message | However, this is what Jim Selin told me, "Many customers find that the black shield fits acceptably with the filters in place." I infer from that
 statement that a substantial number cannot get the elbow set to work with
 the air guide. Therefore, there appears to be variables affecting installation
 not taken into account in your analysis.
 Also Jim said, "The final filter location was a tough decision constrained by many variables. I wish they could have sat a bit higher but it didn't seem possible during development."
 Dang. 
  Chance favors the informed 
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