Thanks for the info batty, I have read that on the archive before. However the doctors that were asked I assume have been trained in the conventional approaches, and it does say if a blood vessel is cut, I'm sure there are if's that could apply to conventional approaches as well. I have yet to hear of adverse cases from SBI, only success stories and heresay regarding the dangers. It would be unfortunate if this minimally invasive technique is not being utilized simply because so many surgeons are trained a certain way and due to competition spread misinformation about it like they do with radiosurgery. I just emailed SBI and asked them to comment on the risks, if they respond I'll post it here, to hear their side of the story. Maybe they have a procedure in place to repair any possible cut of a vessel.....I guess we'll see.