Nigel,
It's tough for us in the US to see some of these wheels without gagging, only because we've grown up with them on every rusty crap-pile 'hot rod' that was ever around.
With you having more 'virgin eyes' you can probably appreciate some of these more that we can. I do know that I've seen those centerlines on everything from mid '70's Dodge Darts, to early '90's Ford Rangers... those were the greatest wheels to have in high school... until they were replaced with the dead sexy 5 bladed directionals!
If you like them, then run them... No one in the UK will even notice
Shawn