Thanks for the reply mate!
I didn't think to mess with z-hop - I'll give that a go, and I'll do some testing to make sure the Bowden is seated correctly and the wipe on retract is actually happening - thanks!
The print in the image is a 'torture test', and just something I had on hand to illustrate the issue. I'm actually not fussed if there is still some stringing at the top, but other detailed prints were getting it pretty bad, including retraction towers.
Congrats mate! Thank you for all your hard work on maintaining this little piece of the internet for us!