I shot through many of the "shoot through mesh" blinds trying to determine which was the best one for an upcoming turkey hunt. I even had a bunch of replacement mesh windows sent to me for testing from each manufacturer. What I found out was arrow flight was affected, just not severely at close ranges.
From 5-25 yards, arrow flight seemd okay and point of aim vs. impact was fairly consistent. As I shot farther distances (tested out to 60 yards) there was a significant difference in arrow flight and point of aim/impact.
One side note is make sure the mesh is secured as tight and even as possible. I seemed to get better arrow flight this way. I no longer shoot through any type of mesh, rather I black-out the interior portion of the blind and use Double Bull.
BOHNTR )))---------->