AJ Sun,
I am so sorry to hear of the extent of your issues, and hope the MRIs will give good guidance to your doctors! We do need you back on the forum, and active with your modelling work. You have helped me immensely as I resurrected my Super Ringmaster and K&B 19 and K&B 29 engines, and your continued help is really important! Get better quickly, I am about to run them up!
AA Ganz