The Good, Bad, and Ugly. As I start down my investigation of these planes, what are some of the plusses and minuses? I was recently informed that the entire structure is some foreign metal that is impenetrable to corrosion. I forget the actual wording but something about zinc something or other. I have heard the spar is very robust. I like robust spars and don't like corrosion. They seem fast, roomy, and quite capable of anything one might ask of it. Any models that are to be avoided? I assume the 180 is probably a dog but maybe not? I spoke to @EdFred about them and I understand I need to fly to Australia to get a horn for the elevator but other than that, what are some of the considerations? Thank you in advance.