Herald door aperture seal joint location?

[Morgana]

I've taken off the furry large bubble seal in favour of a new flipper seal from East Kent Trim Supplies. It looks the business and feels nice. Not furry either. The PO seal was joined at the middle of the bottom horizontal run. On the MGBGT it's a self-cut mitre at the top rear corner of the opening. I can't see anything in the workshop manual or Haynes, so any consensus on the best joint location?

[Colin Lindsay]

I always join them at the top rear corner where there's less chance of water getting into the join; an angled / mitre joint under the roof. No idea if that's factory but it works for me and makes the joint hard to spot.