Inspection of helmets before games

[oneonone]

How picky do you all get with the decals on the helmets or numbers painted on them. I know the LL rules say that only decals approved by the manufacturer are allowed on helmets and no paint. The association I call for knows the rule but won't allow its enforcement! Has anyone ever seen a helmet compromised by the decals adhesive or the paints chemicals? I at least try to make sure the paint and decals arn't trying to cover cracks.