has anyone had problems with clutch slip developing after an oil change. this relates to wet clutches only and im told happens becouse the oil has been changed from a synthetic to a mineral oil, or vice versa, after the clutch was bedded in on the initial type of oil. apparently the clutch fibres become contaminated with the oil type that they were bedded in on and dont gel with the other type cousing slippage after the oil type is changed. if anyone can confirm or deny this it would be appreciated. thanks.