You don't need Zymol to maintain an excellent finish. In my opinion it's a triumph of marketing. The results can easilly be matched with products that are far more reasonably priced.

My best advice for you would be to contact John or Adrian at Clean and Shiny (my supplier from my detailing days) here - sales@cleanandshiny.co.uk - if you make the subject line Talk Morgan and mention me (Ben Pocock) they'll know what your enquirly relates to and will give you advice best suited to your requirements.

Hope this helps,
Ben