Clutches with machined drums tend to be more pricey. Performance difference will be nil. Briggs is just trying to keep costs minimal.Gotcha. Meaning that a "machined" stinger drum was found to be advantage over stamped drum perhaps? Or for some other reason that want ALL to be STAMPED. Wondering what was at heart of that decision concerning stinger drums and what's so special or different about a STAMPED drum?
And thank you for reference to clone or predator class, guess I wasn't thinking about that use.