As I watched the final preparations being made for the Experiment, I thought: No way. I don't care what the alternative is; I would never consent to undergo that procedure. And anyway, I'm not sure why Barnabas is so sure that Angelique won't figure out that he's inhabiting a new body. I'm willing to bet that the first thing he'll do once he's in the new body is to go to Angelique and gloat.
EmeraldRose commented the other day that Barnabas had shown the first sign of caring about Julia. I disagreed with her, but didn't get around to saying so at the time. At that point Barnabas was still using Julia, and making sure she would stay alive to be used. Today he said he was glad she was here for the operation. It can be argued that he was just keeping on her good side, but I think that argument would be weak. When you're facing the possibility of death in the next few minutes, you can get sentimental about just about anybody.