Glad I could help a little. Maybe I can even do more. In my post:
scroll down to the Sub-Heading: "How About Your BioAge Clock".
You'll find a downloadable Excel spreadsheet that you can use to calculate your vascular age. There are three methods to choose from, one includes the Withings PWV reading.
The underlying algorithm comes from our own research with several hundred people.
You might find that your reading is more favourable than what Withings tells you. Their algorithm is a bit too insensitive.
Let me know if you have any questions, William, and I'm curious to hear about your results.