What plug gap?
<<I've seen posts by one of the resident professional techs here saying that they go as high as .040 in his shop. Another pro once responded to this saying that .032 is std. factory gap and that was the way to go.>>
<<<I set mine to .036 and believe I get a slightly smoother idle at this gap. This is of course is one persons opinion.>>>
It's more than one person's opinion. The shop foreman at my MB dealer told me that they use .036 for a smoother idle.