Are the weights for Mytee Eco floor machine worth buying for stone polishing

[Keeping it clean]

Are the weights for the Mytee eco floor machine 17' worth buying - for stone polishing? Or would it be better to just have a 175rpm floor machine for polishing?

A549 Weight Kit for 17" ECO Orbital Floor Machines - Mytee LLC

Weight kit for 17" ECO Orbital Machines. Kit includes a set of four 8 lb. weights.

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