Fazer thou shock conversion sounds good. Would like to try it but I'm always changing the preload to suit solo, 2-up + luggage weight etc so was put off when I heard it's more of a fiddle than the 600's shock.
Talking of which, how to adjust preload. First find a suitable c-spanner, there should be one in the toolbag under the seat. Stick the tubular handle thingy on the end of the c-spanner (should be in the toolbag as well). Put bike on centrestand. Hook the c-spanner into one of the holes found at the top of the shock and move it left or right depending on whether you want more or less. There are 9 different settings, notch 5 or something midway might be a good place to start if you're average weight. Can require quite a bit of muscle but you'll soon get the knack. A bit of grease/lube on the notches (at the top of the shock) can help if it's being stubborn.
Talking of which, how to adjust preload. First find a suitable c-spanner, there should be one in the toolbag under the seat. Stick the tubular handle thingy on the end of the c-spanner (should be in the toolbag as well). Put bike on centrestand. Hook the c-spanner into one of the holes found at the top of the shock and move it left or right depending on whether you want more or less. There are 9 different settings, notch 5 or something midway might be a good place to start if you're average weight. Can require quite a bit of muscle but you'll soon get the knack. A bit of grease/lube on the notches (at the top of the shock) can help if it's being stubborn.