I had L5-S1 discectomy, laminectomy about 4 years ago. Surprisingly my Defender seats are relatively comfy for long drives, even more so than our Honda Pilot. I still need to take more frequent stops and stretch though. I have thought of switching out my seats for Disco seats in the future. I have a 94 Disco and may put those in the 130 when I get ready to replace the Disco. Sorry I cant help you any more than that. Take care of that back, mine will never be the same.