RE: Seamaster .40 with an O.S. .55 AX
great advice.......I drilled mine wrong and had to redo it. My seamaster ARF is brand new and the blocks were installed in the fuse. I redrilled the holes 3/8" from the trailing edge. This puts the holes right through the T.E. stock. Make sure you drill in far enough from the sides of the fuse to accomodate the large diameter blind nuts, the will bind against the fuse sides if you dont.
Good Seamaster advice on here, let us know how the Neptune compares to the Seamaster too.