First if you run one make sure you run the Race CB!! I run the Race CB with my stock plastic. Second no I do no run one on my MT or my Savage, as I have no need to. Many have problems setting mesh particularly on a Savage and run them. On my Savage I am still running the same one after 6 gallons and on my MT I have only replaced it once other then changing gearing. To me it is just a waste of money. Rotating weight is a BIG horsepower eater.