What I would say about the Farcela mitt is you need to keep it and the surface well lubed, otherwise it can leave rubbery residue behind.
And if it's the first time claying your car, a regular clay bar would probably be better as you can see the contaminants coming off the car and when they are gone.
And if it's the first time claying your car, a regular clay bar would probably be better as you can see the contaminants coming off the car and when they are gone.