51% - yes I've heard of this workaround with some other aircraft - the owners can sit around drinking coffee and having lunch but their presence at the 'build' is used to justify the exemptions to proper certification.
The more I hear about this project the more cynical I get about it.
Crab, read the regulations and read the companies website. There are no work arounds, this approach has many benefits for the owners, hence why it is working.
Being as well read as you are...I'm sure you realise that this approach was developed by Hill and the CAA in partnership back in 2016.