anyone tried these options: mothers claybar over zaino claybar? are they the same or is one better then the others?

 

I haven't used the zaino but in my opinion
clay magic > mothers > meguiar's

 

I've used Mothers and it turned out great. Only needed 1/2 of the bar. After I was done with the Z I clayed my SUV with the used bar. Worked out pretty good I'd say, but I haven't had anything else to compare it to other than other new cars at the dealership. After waxing it felt noticably smoother than the dealership cars.