I have had moderate success using ModPodge under MonoKote. It has close to the same adhesive properties as BalsaRite and it comes in colors.
I use it mainly just on the fuselage to help hold down the MonoKote on the concave curves. Give it a day or two to dry (water based) before sanding the fuzz off and dry wipe it thoroughly after sanding. I have had the "toad warts" that Peter alluded to if I didn't let the ModPodge dry enough. If you can find a color close to the monokote you might avoid the glue smearing, which it will do, showing as much.
Ken