SP Connect already has an anti vibration module available, apparently. However looks like it's only available from their US web site and they don't ship outside of USA. There is also zero customer support available via their web sites so can't even ask a question. So fkem. US people might be interested though... https://sp-connect.com/products/anti-vibration-module
They have a UK site https://sp-connect.co.uk/products/anti-vibration-module?variant=31685155061858 which shows it so I guess you can now buy it for delivery here @ £24.95 plus P&P.
Thanks Billy. When I click on or type in the UK or Europe sites for SP Connect I get instantly diverted to the Aus site where there is no info. I found a retailer in Germany that will post it but freight doubles the cost of course, about €64 which in my money is bloody expensive especially when you have to buy a mount and throw away the top half. I've asked the question of Aus SP so will see how they respond. SP and QL seem to be front runners - once anti vibe options are available - with pros and cons for both.
I hope quadlock keep inline with those prices. They are well over priced as it is. They released a wireless charger and wanted £90!
Just looking at the photos of the anti-vibration mounts from both SP and Quadlock I would expect better performance from the latter as it appears to have better separation but the downside is it will raise the overall height. Which, in my case may prove to be a problem because the phone already obscures part of the temperature gauge.