Yep. If you have bars on the upper wing leave the lower solid. That wild Hot Stik I showed is "plain" Fluorescent lime green underneath with wide black bands on the wing tips and one red stripe just indide on the wing & horizontal stab.

Wheel pants can be a big visual aid, also. Unfortunately, I have had grass field complications with most of mine.

Had a guy in our club did a drop-dead gorgeous finish on a Sig Astro Hog in sky blue with sapphire blue trim in a 30's era GeeBee bat-wing style. Sky camo, unfortunately.