A shim defined as "A thin, often tapered piece of material, such as wood, stone, or metal, used to fill gaps, make something level, or adjust something to fit properly."

If thick ness of the shim doesn't matter then..how will shim fill in the gaps? I ain't being a dick or nothing just that ur logic does not flow. Anyways have a good day.

Oh yer: Negative...good good as long as u have a stem for the right bar..all good.