Not sure if anyone else here has these speakers, but here are the official torque settings for the record, just in case:

Tweeter is 0.6Nm
Midrange is 0.75Nm
Woofer is 0.75Nm

These were provided by Peter Thomas on the FB PMC group.

Following PMC's input to a discussion on torque settings for Twenty.26 on an unofficial Facebook group, they've pro-actively published torque settings for all their speakers on their FAQ pages.

I think they should be congratulated on this approach.

https://pmc-speakers.com/faq-page

That’s commendable for them to go to this detail to get the best results for the hard earned cash.