So I have a customer that wants me to install his name directly on ribbed metal siding. I have been putting it off forever due to not wanting to do it. I told him it would be easier to mount it on a board then install said board. He said no. I finally gave in and said I would do it. What are the tricks for doing it. I am not worried about horizontal shrinkage. Just looking for pointers for something that is might be over looked but would make the job easier. Thanks.