Hello Colin. I'm sorry that I'm unable to help with your questions, but I did want to take the opportunity to welcome you to NeuroTalk just the same.

You may get some feedback if you were to post under our Spinal Disorders & Back Pain Forum, so I'll give you the link to that just incase you've not found it yet. http://neurotalk.psychcentral.com/forum22.html

Hopefully one of our other members will have the information that you seek.