I just installed 195/50 Falkens up front and have no rubbing issues on my stock 2005 Elise. /final correct answer.
Don't believe the hype... a good tire (tyre) is a good tire. As long as it's made correctly, running Yoko's is no safer than running good quality, similar tread Goodyear, Falken, Toyo, Pirelli, etc. Most consumers believe all that's fed to them by the manufacturer. I would lay all my voodoo on a customer too in order to feed on their fears if my company had a contract with X supplier (Lotus with Yokos). It makes perfect business sense!
