In article ,
Andy Blackburn wrote:

Do the
dimples hurt performance - how concerned should I be?

According to Richard Johnson waves greater than .004" peak-to-peak (or
+/- .002") will not allow the laminar flow airfoil to perform as
intended.

From your description of the "dimples" I would be inclined to say yes,
you should be concerned, and if I were you I'd have it fixed. Can't
answer your other questions.

Regards,

-Doug