I am replacing a portion of 6" channel cedar on my painted house. I am wondering if it is better (or ok) to use decking screws. Or should I only use stainless steel or some sort of nail that has a screw in it. I was told screws will resist pulling out of the wood as time goes on. Since I am painting the wood, does it really matter? Which won't stain the best? Do decking screws (colored) stain or rust in the wood? Thanks for the help.