so I have some paddles like that, but they're cheaper and not magnetic or whatever, and I think that's the issue. they never stay stationary and still, and I think a mag one would.

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edit researching. mine are just really inferior. so even these may be better https://www.amazon.com/gp/product/B01H2H79ES/ref=ox_sc_act_title_1?smid=ATVPDKIKX0DER&psc=1