Please do search the forums as it's been discussed numerous times.
But, in a nut shell:
.25-2.5" drop: torsion twist (remove bolts if wanted), 2" rear blocks, ride quality hardly noticable to me, others it was.
2.5"-5" drop: torsion adjuster flip, 3-4" rear blocks (whichever you want), ride quality does matter at this stage, as this is what I did to mine, will wear on you.
lower than 5": bag.