I have remained true to the parts and will tell my T if she gets something wrong about the parts. I think that it is important to keep authenticity when dealing with parts otherwise, they get buried and we are no further ahead. You may want to ask your T what he is seeing that you are not. It may be that the part is hidden from you but not necessarily from him. Your T may experience your parts differently so he may be more aware when they are present. Or, he could just have it wrong at that moment. This is tricky because we need help with our parts but we also want to please our Ts. I have told my T that I do not want to "create" the part when she wants to address them. I have to wait until they are there on their own. She understands and appreciates that I know the difference.