Herniation at L3-L4, degeneration and fragmented disk at L5-S1, degeneration at C4-C5, herniation at C5-T1.
Still riding.
The Busa is the best ride for my back. The leaning stretches my muscles, the aggresive seating puts the weight on my thighs, not my tailbone/spine. I rode 200 miles on my son's GSXR 600 and thought I was going to pass out from the pain.
I did install genmar 1.25 risers to help with the lower back. Now I don't lean so far forward.