Java Builder pattern with inheritance

I want to implement a builder pattern with static inner classes for lets say classes A with fields (a1, a2, a3), B with fields (b1, b2) and C with fields (c1), whereas all share fields (s1, s2) from super class SuperClass:

public class A extends SuperClass {
    private final String a1;
    ...

    private A(ABuilder builder) {
        super(builder);
        this.a1 = builder.a1;
        ...
    }

    public static class ABuilder extends SuperClassBuilder implements ABuilderInterface {
        private String a1;
        ...

        @Override
        public ABuilder withA1(String a1) {
            this.a1 = a1;
            return this;
        }
        ...

        @Override
        public S build() {
            return new A(this);
        }
    }
}

Accordingly for B and C the builders just differ that they have their own fields and implement their own interfaces (BBuilderInterface and CBuilderInterface), whereas these interfaces are only defining which methods are to be implemented:

public interface ABuilderInterface extends SuperClassBuilderInterface {
    ABuilderInterface withA1(String a1);
    ...
}
...<interfaces for B and C>

public interface SuperClassBuilderInterface {
   SuperClassBuilderInterface withS1(String s1);
   ...
   SuperClass build();
}

// Usage of the builders:
public SuperClass foo() {
    return new A.ABuilder()
        .withA1(...) // returns ABuilderInterface
        ...
        .withS1(...) // returns SuperClassBuilderInterface
        ...
        .build();
}

Now you can spot the limitation that when I use the builder I have to pay attention to call the with... methods related to the child class first, then chain the ones for the super class, which is not a big of a deal, but still not sure whether good practice. On the other side I could add the with... methods of the children classes to the super class interface all together and then the limitation is gone, but then I have an interface with mixed with... methods of different child classes.

Which one would you prefer/suggest?