Quote Originally Posted by Drew451 View Post
Last of the Welsh PTFE maniacs? Everyone knows Dianas run best on leather (German- leder). At least mine do so do as I say, pal.
Away and fashion a pair of PTFE socks or that if you want to do something useful with it... Second thoughts: don't bother- you're feet are out of round .
Probably because the transfer port is large, to allow for the sedate leather-braked piston speed...