Following is data I used the carve the G.A. deck sheer strips. It assumes the tops of the hull's sheer are flat (horizontal) and that the deck sheer strips are about 3/8". I drew full length lines on the strip's sides adjacent to the corner to be beveled then carved to the lines. The data below defines points on the two lines, measured from the corner to be beveled. Good luck.

Station 3/8"side 1/4"side
0.5____0.250____0.081
1______0.250____0.096
2______0.167____0.250
3______0.080____0.208
4______0.058____0.217
5______0.041____0.250
6______0.031____0.250
7______0.031____0.250
8______0.000____0.250
9______0.000____0.250
10_____0.064____0.250
11_____0.114____0.250
12_____0.149____0.250
13_____0.194____0.216
14_____0.187____0.131
15_____0.218____0.097
16_____0.250____0.026
16.5___0.250____0.026