LouW

I only said “likely”. The only way to tell for sure would be to compare two airplanes identical in every way other than the airfoil. As for a suggestion for improving the quickee, a slight camber would move the drag bucket to a higher lift coefficient that should result in less drag during turns without affecting the straightaway portion of the flight. Possibly a 66-412 or 66-612 airfoil would do the job. (Other than flying upside down, a symetrical airfoil is seldom the best choice)

The point of my earlier response is that for R/C models, laminar flow airfoils generally offer no particular advantage with the possible exception of pylon racing.