Yeah, those crane arms were the ones that Nick shrank, they were a bit soft, and that is why i stopped at the one set on each side. The Morser Karl parts are not something reasonable in general to cast, at least not for a production run, that is why i just made them solid for production. Way to much breakage possible with those tiny parts.
Fourth one is an extra, even with the middle cast i was worried about those thin arm braking in transit, you only need 3.
I understand the desire to tinker with the kit. I knew that people would have their "favorite" detail they really wanted, or something they wanted to improve. With the thousands and thousands of details on this kit (never mind the actual body and structure part of the scratchbuild) I knew every detail was not going to be a home run.
Like i said, if we have a small set of common stuff that everone wants, like the dome cover, and i can keep it to one or two simple molds i am happy to send out a little upgrade kit for everyone. Looking at how good that dome looks, i realize that the one in the kit is a bit lame, I think that must have been right around where i ran out of steam, it was one of the last parts i did...
thanks
mike