RE: 1/8TH SCALE HYDRO BUILD QUESTIONS
As I said in my last post, this is all personnal preference. As far as rudder length and blade shape, you will need to test and test to find out what works best as no two boats are the same. The CMDi engine mounts look like they are designed to go through the engine rails or tub sides in vee or rigger hulls and may not be the best for a scale boat where you won't have access to under the deck. Your best bet would be to contact the various parts manufacturers and see what they can do for you. In my case, I have started making some of my own parts when it's a "one-off' type of deal