https://www.amazon.com/dp/B00BQA3VEK/
That there is a very good water-based compound that a lot of us use. While yes it's used for cars, it works perfectly for dice and all you need is but the smallest of drops and if it 'dries out' a small drop of water brings it back. Use something like that on top of the last zonas or even on its own using a microfiber cloth, just re-add a drop after each full set you do to ensure the grit hasn't broken down.
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If the price is a bit much you can go with this: https://www.amazon.com/dp/B0000AY3SR
The same idea as the other though you might need to use a little bit more. It is oil-based however so you can't add water to it if it starts to dry out, you can only add more of itself.
Chemical Guys GAP_V34_16 V34 Optical Grade Hybrid Compound (16 oz) https://www.amazon.com/dp/B00BQA3VEK/ref=cm_sw_r_cp_api_i_VR461ECS6B27G26NDV4G
This is the polish im using and I’m sanding the flashing areas off to a 400 grit