Matt
basically the better choice is to go with the "team" with more experience. Because every doctor uses techs for extraction, and Feriduni, i.e., has always shown and praised publicly his team, made with people that work with him from a long time.
Lorenzo is still to determine how long experienced are his techs, since he used to do the work all by himself, as stated on his website. But things are changed because i was handled by techs. On this doc ask me everything you need, i'll be glad to help.
Bisanga i don't know much about his protocol, i like him of course, but maybe his patients would be the definitive source for facts.