bladup wrote:
Zennor's stone dividing the 2 chambers is diagonal, and it's by far the closest type to trethevy that's extant.
Zennor only has one chamber, unless you mean the little antechamber behind the facade slabs. The blocking stone between the chamber and antechamber is leaning slightly backwards, that's true. Zennor also had a supporting backstone, like Trethevy.