Posting here as it concerns a BA ticket, even if I'm not going to actually have any interaction with BA during the trip

In a couple of weeks, I be flying LHR-HEL-CPH on AY (but under BA codeshares on 125- stock) then CPH-TXL on AB on a separate AB ticket.

The AY/BA flight is scheduled to arrive into CPH at 18:25 and the AB flight to depart at 19:40, hence a connection time of 1:15.

What do you think my chances are of getting the Finnair ground agent at T3 to interline my bag all the way through to Berlin ?

Conversely, if they won't play ball, do you think it's doable to collect the bag in CPH and recheck for TXL ?

Thanks in advance !

P.S. Note to self: really must stop booking these optimistic routings