I have SCT's in 2WD, 4WD and Rock Crawlers, looking at all the differant spring rates, oil weights, big bores, internal springs, droop set up, it all seems like smoke an mirrors to me. There are so many setups it is very hard to determine what is right for your rig, style of driving and your setup. All I can say is good luck, let me know what you finaly go with.
Smitty