DFhunt-I use a Leupold QD mount on my omega.I remove to clean every time and have never had zero change.I know of no con's except price.If you pay over $400.00 for a rifle,another $100.00-$200.00 or more for a scope,What difference is another $100.00 or so for quality mounts? A wise man told me one time "Always buy the best equipment you can afford"

Charlie