Yeah the wood texture is used elsewhere. It was a nice idea but I was afaid it might mean textures appearing in the wrong places.
Some thing I noticed when I was modding these textures last week..
All the different subs clip the MapStrat texture differently.. but you can resize that texture so it is smaller than the clipping, it gets slightly stretched but fills the allotted area nicely on all boats then.
I am using a Philippines map taken from..
http://www.jha.jp/kaizu/q_o.htm
While it looks new (and is new) you can desaturate the colour and make it look older.
I prefered it with colour though. Plus it has a little japanese on it too like a captured chart would, and several boat used captured japanese charts cause they were more accurate.
On the interior textures, the japanese writing that appears on on some panels can easily be editied (I did mine to OPEN /CLOSE) though I dont know what the Japanese means, also on that texture, there is a lens texture used on the periscope but it has a massive refelection of a tree in it... yet there are no trees... I found a texture from a camera website made a nice replacement for this.. I would upload, but I am on dial up so can't. If anyone is desperate they can PM me and ill upload it while at work next week.