oh yes, I also have L6
I my case the fusion hybrid worked. Instantly. In fact I have more motion then I did before. All the stiffness and locking up with pain, gone. Now 1.5 years out I still have problems but nothing like before. It seems the adr provided that need motion to make up for the fusion and i don't seem to have issues with the restored disk height. I get regular sciatic leg pain attacts that leave me limping and on pain killers and I am not sure where those come from. These have gotten worse, get triggered but some activity and take 3 to 4 days of carefulness and painkillers to resolve. Painfull, but not like before as it GOES AWAY for a time which is a BIG difference.