Anyone changed the fork oil on their Spada? Got some questions for you. In the manual there looks like what may be a drain plug on the bottom of the forks. It is labelled item 6 - Fork socket bolt/washer. Is this a drain plug? If it is I assume I can drain the oil, compress the fork and refill from the top? Manual says to refill oil to the specified level Specs say capacity is 371cl. Is this the maximum or the recommended oil level? Anyone know what grade is recommended? I'm 92kg so any tips on oil levels, grades or preload appreciated.