Integrated LEDs into Lighting Wing

Formerly I had just taped some green LEDs onto my wing and that worked ok but you could hear the increased drag as the plane flew by and it cut down on flight time so I decided to cut some forward facing slots and insert the LED strings into the BOTTOM of the wing. Here are a couple of photos. I cut the slot, then push the wing apart and insert the string into the slot and then used a little hot glue in few places and just spread it over the slot to give it a little more strength. The LED string is flush with the wing so no increased drag.
I have done both wings and ironed on some bi-directional tape over a few areas. Hope the tape sticks.
Currently am using two small 1s lipos to power the 3 volt strings but plan on buying some 12 volt strings for the future so can just run them off the main lipo.
This should be loads better than taping on the wing. Here is an awesome writeup by CrashTestHobby.com about how to do it.
http://www.crashtesthobby.com/night-...ed-lights.html

Also an acrylic painting I did of one of my students.

Update: flew last night on football field and flies great. No drag and very visible. Unfortunately one led battery was dead so flew with only one wing visible but still easy to fly. Now can fly with or without lights and no difference in fight characteristics.