Well, the Nautilus Type VII was just a duplicate of the kit, slightly inaccurate but nothing terrible. They have come out with a wood deck for the Special Navy Type II, which we KNOW is inaccurate enough to be a problem, and Nautilus says on their site:
"The kit consists of a single piece main deck, with the proper deck cut-outs for the early Type IIA submarine. Special Navy must have used the same set of plans I have, as there are very few differences between the two (except for the wood)."
NOT a good sign. I don't see the Gato deck on their site anyway.
Some modelers have handmade the cigarette deck, and tho it's hard work, results are nice. I still have dreams of a laser deck. (accurate)