I am not saying they are bad products. I will be clear with that.
However. 8 oz of polish for $20 vs other brands out there that out perform and are half the price. I would recommend looking into
Stay Fresh Car Care / Premium Car Care Supplies
We can all love our Z and not get ripped off at the same time.
Here is just one example HCC9 from SF is $80 a kit and offers 9H vs Adams 7H $150 kit.
Just because its more expensive doesn't mean its better!