Other brake pad options for Wheelworks Maker rims?

Has anyone with Wheelworks Maker rim brake wheels tried any other brake pads? Wheelworks say that only their pads should be used to maintain the warranty. I’ve just bought a set second hand, so the warranty no longer applies anyway, and the guy I bought them from had been using Caden pads without any issues, and they’re less than a third of the price. I’m just hoping to increase the sample size of data before making a decision.