Thanks for your detailed response.   In answer to your question (How likely is your implementation to "re-track the same quote".), it's actually quite likely. We get a lot of users who will see a quote and then go back and make some changes and then land on the Premium page with a new quote but with...

We are looking to capture quote values within an Insurance journey so we're going to put these values in Events (set to Currency) in s.products. We could capture these once per visit to avoid duplication but some users get multiple quotes per visit so we'd ideally like to serialise them with Quote R...