Tried the hotter plug option this weekend and the problems seem to have gone away. Checked the plug after the event and it runs much cleaner now. One bike has the std throttle body on it with big bore exhaust,Jitsie filter and the flame guard fitted. Other bike had big bore exhaust,Jitsie filter (no flame guard fitted)and Power map on PTB. So from this it's suggesting the plug is looking like the culprit !! Regards Std parts or not - can only suggest what we have found out, but all the above was used on the '05 bike apart from the PTB and never had a starting issue. Oh and one last thing - there was plenty of mud and deep water around !!!!
All in all for what it cost's for the plug - give it a go as it seems to work ok on our '07 Repsol's ps has anyone tried an Ohlins on their bike ????