I have a chrome/walnut one and a plain chrome one i like to have a change every so often
Serpeants are hard to get and expensive! looked a few times my self for them and think of cost of tyres!
I have the crown's and they look good after a good wash and the tyres dressed, however they are a pain to clean. My mates still howl at them saying how small and old mannish they look haha.
I have noticed in another thread you have this tapperty noise as well? Im going to strip the sump off and replace that o ring soon so will let you know if it works!
John