I've followed the excellent instructions on here about how to seal up the leaking rear doors.

It's a massive improvement on what it was, but still leaks a bit. Realistically I don't have the time to take it all apart and find out where it's leaking.

I don't believe any work was done under the warranty to fix the rear seals. Would it be best to take it to a normal garage, or a skoda dealer to get it sealed up?

I could sugar-coat this, but not a hope in heck.