Here is a trick that worked like a champ
While doing the second area of the recore and at a point where I needed to mix up some thickened epoxy anyway I decided to do the cutout for the water tank deck fill. I was pleasantly suprised to find solid balsa in this area but that meant I needed to figure out a good way to dig out the balsa around the perimeter of the opening back approx 1/2" so the screws holding the deck fill in place would not be in balsa.
I came up with a slotted cutter on the trim router that worked like a champ as you can see below.
The last picture is the area I'm currently working on.
JERRY CARPENTER - C147
A man can succeed at almost anything for which he has unlimited enthusiam.