The hunt near me build what they call wigwams ,branches and boughs all layerd up against a tree in a wood ,the base being 20 ft across ,These hold .
They also use sleepers on edge dug in or not and covered in branches and turf these also hold .
There is no rhyme nor reason to why some perfectly placed dry arts never hold no matter the encouragement and a wet drain further on has one in .
A variety is the thing I’d say and don’t try it too often .