Just bought an all metal wing style capper from a guy on craigslist. It is in good shape, already did a dry run with it, however it is stiff as hell. I was wondering if I cleaned it with a solvent and lubed with wd-40 if it would help. I am also wondering if there would be and negative effects to cap performance?? if there is such a thing or really if it would be safe to use still, since solvent isn't food safe.