I went and spent an hour with him and showed him all the various kits. I was armed with as many pictures as possible. Its hard to start a major project and hope that the engineer will pass it when it comes time, even though he says he will, he might not...

I agree though, engineers are all different. I guess it's what they think is best as they have final say, unless you get busted by the police for something stupid and they decide to inspect your car, then I am not sure what happens after that.