Much appreciated Brennan,
I found a website called CTSNET - the results were pretty promising and it really detailed the surgery...
I have bad discs in my low and middle back and base of neck that give me fits - my theory is the muscle weakness from MG is making the discs even worse by allowing my frame to put more pressure on them. So, I have to decide do I risk surgery for say my neck which is worst or go for the thymectomy and hope the muscle strength improves a lot and I may not need that surgery as well!
Unfortunately pinched nerves from herniated discs can also cause muscle weakness or impairment that may mimic some of the MG symptoms. Kinda the chicken or the egg delima!