Dont know if many people are aware but OnTheThrottle TV
has recently been conducting live shows with Dave Moss, resident suspension Guru.
Interestingly I managed to get into the live chat for the show on the 17th (Shock Springs) and asked Dave about the differences in setting sag with regards to linear and progressive springs, particularly with respect to the Daytona 675. As Dave has a 675 race bike he spent some considerable time answering this question to my delight. Unfortunately at present the Q&A session does not show in the video but I'm assured will be added asap.
Some highlights from his answer included (from his on personal experience when he picked up his 06 675) the need for a larger amount of sag on the rear for street use. Specifically he ran 40mm of sag on the street. Interestingly before changing out the rear shock and spring he did use the stock setup on track. He overcame the progressive element of the setup by reducing sag down to 19mm on the track. This is all better explained by him in the Q&A.
He also uses his 675 race bike on the Chassis Balance video shown below to demonstrate setup.
[ame="http://www.ustream.tv/recorded/5524985"]OnTheThrottle Live 17th Mar 10 - Shock Springs[/ame]
[ame="http://www.ustream.tv/recorded/5350380"]OnTheThrottle Live 10th Mar 10 - Fork Springs[/ame]
[ame="http://www.ustream.tv/recorded/4808046"]OnTheThrottle Live 17th Feb 10 - Chassis Balance[/ame]
Another excellant set of videos by him at present are the 'Two Clicks Out' series. Definately worth checking all of them out.
[ame="http://www.youtube.com/watch?v=iUgAbWj0zAU"]YouTube- Two Clicks Out 13[/ame]
Have to admit I love fine tuning and analysing setup. Unfortunately trackdays here in Scotland dont have the same level of support that you guys get over the pond. So these vids are a life saver for me.
Oh and if its all new to you this video is the perfect start point
Setting Sag with Dave Moss including rebound and compression