With regard the the subtitle shake (and please someone correct me if I am wrong). But wouldn't the subs be burned into the film itself and the shake would be caused by it going through projector? If so, then wouldn't the whole film have such a shake (opening credits, etc)? I understand you are trying to do a high quality restoration of the original trilogy, which I am grateful for - but to replicate what was caused by the projector and not what was was actually in the film itself seems like a bad idea to me. It would be similar to adding cigarette burn marks in the corners, because they were seen in theaters from when the film had to be spliced together.

Please understand I mean no disrespect, and it is likely I am misunderstanding what caused the subtitle shake. But if the shake wasn't on the actual film print then I don't think it should be part of the restoration/reconstruction.