I think a lot more people then just Andy should find this a little condo sending and insulting. Not everyone buillds model cars to bbw exact, or to the letter. I may be on my own here, but I like to build models to suite me taste and style, and I can usually do that with out looking where the rear axle goes or if I even want all those parts in my build. I didn't know that we had to be precise and logical in all of our thinking and posting. It was a question of of people used them or not, not why or what ramifications would come if they didn't, lighten up a bit.