When we brought 'Basil', one of the things I noticed was that 2 doors had 'Figure 8' type seals instead of 'letter B', i.e. the bulbous portion of the seal was on the end of the U shape channel, instead of being beside it.
So having got the right shape seal, I went to fit it and found another problem.
Although the Driver's door has plenty of gap around it to accommodate the new seal almost all the way around, at the rearmost top corner, the top of the window framing only has about 2mm clearance from the body metal; this might explain why the wrong (and utterly pointless) seal was on there to start with.
Is there a way to adjust the alignment of the window channel assembly, or is it a case of adjusting the whole door?

I just need that rearmost top corner to be a little further from the body.