Preference for UC flights from LHR?

Hi,
Due to a ticketing issue, I may have to change flights from those already seated this June. Currently we fly out on VS19 (747 seats 12A/12K) and return on VS8 (787 seats 5A/6A). My flights are normally from MAN, so I have no experience of the different planes or LHR seating arrangements.
Now this ticketing issue (a mix of problems due to Little Red ceasing for the feeder flights from MAN, and my name being spelled incorrectly on the original ticket) means that I may have to change flights to the later ones on either or both legs of the journey. That also means a change of plane to the A340. Would you consider this to be a good move or not?
Please don't get me wrong, I am in no way "VA-bashing". At this point VA have been nothing but helpful in trying to resolve the situation to my satisfaction. I have a named contact working with me, and she understands how important the trip is. They have accepted responsibility for the initial spelling mistake, and they are really trying to fix the problems.
So, would you move to the later flight, swapping from 747 to A340 outbound, and 787 to A340 inbound?
Thanks
Jackie
Due to a ticketing issue, I may have to change flights from those already seated this June. Currently we fly out on VS19 (747 seats 12A/12K) and return on VS8 (787 seats 5A/6A). My flights are normally from MAN, so I have no experience of the different planes or LHR seating arrangements.
Now this ticketing issue (a mix of problems due to Little Red ceasing for the feeder flights from MAN, and my name being spelled incorrectly on the original ticket) means that I may have to change flights to the later ones on either or both legs of the journey. That also means a change of plane to the A340. Would you consider this to be a good move or not?
Please don't get me wrong, I am in no way "VA-bashing". At this point VA have been nothing but helpful in trying to resolve the situation to my satisfaction. I have a named contact working with me, and she understands how important the trip is. They have accepted responsibility for the initial spelling mistake, and they are really trying to fix the problems.
So, would you move to the later flight, swapping from 747 to A340 outbound, and 787 to A340 inbound?
Thanks
Jackie