I'm just considering a SOA right now. My springs are very worn and I am either going SOA with my flattened springs (removing the addaleaf and going back to shorter shackle) which should give me 2-3" of lift, or getting something like OME leaf springs. SOA is cheaper, but (1) if my springs are already flat, I may have to replace them soon which would make the SOA lift way too high for me, and (2) I'm worried about axle wrap with SOA.
At this point I am just in the research mode. I need to do something before this summer though.