Repair fin corner

[Oakuss]

I'm still a little clumsy when it comes to sanding an airfoil onto a balsa fin, and on the aft edge, where I'm trying to sand a sharp edge, I often lose the corner where that edge meets the body tube. Any ideas on how I can repair that?

[PaulK]

I'm still a little clumsy when it comes to sanding an airfoil onto a balsa fin, and on the aft edge, where I'm trying to sand a sharp edge, I often lose the corner where that edge meets the body tube. Any ideas on how I can repair that?If the area is small, I would fill in the area with wood filler (I use elmers), carefully sand it back down (this stuff is soft), then soak the area with CA to give the wood filler a bit of strength.