:
1) Set forks with 5mm more pull through the top yoke than standard i.e. lower the bike down the fork legs by 5mm (MAX 10mm)
2) Set Rebound fully off (screw all way out)
3) Set Preload fully off (all way out)
4) Raise front of bike off the ground and measure. (This is Full Travel) = A
5) Return bike to floor
6) Push down firmly and allow to return steadily (do not bounce) - measure = B
7) Lift up with clip-ons (keep wheel on the ground) and allow to settle down (not crash down) - measure = C
Measurement B + C divided by 2 = D 9) Measurement A minus D = 26mm - 28mm
10) Wind pre-load in until this figure is achieved, keep repeating 6 to 9 until it is correct.
11) Set rebound to "fastest possible return, but under control†(screw fully in & than back out probably ¾ to 1¼ turns out)
All the measurements are done with the bike sitting on it’s own wheels, no stands or blocks etc. but I did find that the first measurement “A†was easiest to do with the front of the bike still jacked off the floor, with the wheel hanging in the air, but after that one the bike sits on the ground, no rear stand or side stand.
No one sits on the bike either, the bike is sitting under it’s own weight. You can do this (I understand) because you have put the correct springs in there for the combined weight of you and the bike.
I have to say I'm confused, is it not easier to push the cable tie down to the fork dust seal then lift it of the ground and measure the extended gap between dust cover and cable tie ?
Also I've got progressive springs fitted which arn't by their nature exactly matched to my body weight as a corretly rated linear spring would be, is there a different method of setting sag for progressive springs ?
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will keep this. Suspension settings confuse the hell out of me and it's not that I'm a total plank 
anyone got a spare diablo corsa ?? thought not 
what id did is 3 mm ebay spacer at the back " spacer mod" dropped the front 12 mm then stiffend it all up with the adjusters now feels ace and corners perfecto