Undeniable surfing superstar KELLY SLATER has clinched his eighth world title at the Billabong Pro Mundaka. It was a fairytale script for the 34-year-old Floridian who took the 2006 crown by defeating Australian world number four JOEL PARKINSON in the semi's. PARKO'S scalp was all the natural footer needed in the 1m waves after title challenger and world number two TAJ BURROW (Aus) bowed out in the Quarters. Californian tour rookie BOBBY MARTINEZ (USA) put and end to SLATER'S dream script in ...