PJ, I wasn't aware that a Seiran prototype had an all-green fuselage. You learn something new every day!
I haven't had time to mess with the Seamonster lately, but before bedtime I drilled out the missing portholes for the back seaters. Mach-2 only provide a scribed circle on the left fuselage, but not on the right side (!). The first filled in circle is the kit location, which is too far forward. The second filled circle was my first attempt to make new holes, but I decided they needed to be a little further back and a wee bit lower. Like I said, I measure once and cut twice!
https://flic.kr/p/JvWSs7][/url]Seamaster-47 by N.T. Izumi, on Flickr
The two "deadlight" portholes on the roof were entirely absent on the kit, and the placement of said holes were a compromise between what I could see and measure off photos, and the realities of the kit. I think the panels lines are way off, and the back seaters' roof hatches are too far back. I'll take care of that later on. I plan on filling the porthole openings with CA glue, polishing them, then painting the backsides with Tamiya smoke.
https://flic.kr/p/Jy7Dge][/url]Seamaster-49 by N.T. Izumi, on Flickr
I also took the time to shim the wings to get them to approximate the real thing. The P6M2 had less anherdal than the XP6M and P6M-1, with the underside of the wings appearing to be almost horizontal from head-on. The kit wings have almost no anhedral, so the undersides of the wings angle up going towards the wingtips. 0.030" strip plastic was glued to the upper edges of the wing roots to correct the problem. A bigger problem is that Mach-2 molded the wing section such that the top and bottom surfaces curve in when seen head on rather than having straight lines. Since it would take essentially new wings to correct, plus the nacelles would then need to be adjusted to fit, I am going to leave this one alone. Pay no attention to the Kyofu under the desk!