Originally Posted by
GallopingGhostler
Regarding wing tips, I've found that a block sander with really rough grit, say 80 then transitioning to 150, 300, etc. does a gentler job than sawing and gouging. However one must be prepared to do this in say the garage or outside due to the sanding dust plus weather a dust mask, which may be difficult in the colder weather or if one has balsa wood allergies.

Yeah balsa dust really does a number on me, really bad news.
I will set my disk/belt sander up outside on a chair and park my fat back end in another, and have at it. WITH A DUST MASK ON. I keep a mask outside in the storage closet on the porch as well as one hanging above my build desk.
A balsa dust induce asthma attack taught me my lesson real good.
Right now it is a bit to cold for my taste outside though. Wait a few days and it will be nice.
Outside on the enclosed porch is where I painted the plane in my avatar.
Ken