When #3 was delivered #4 was under construction , given the time since then I would estimate #4 is sitting in the fabricators shop and #5 and parts of 6 are under construction
I don't doubt that in the least but, to have #4 built out before #3 is successfully shaken out implies a lot of confidence in the #3 design. In your opinion, does JBI have good cause to think that the basic components of the #3 design are sufficiently worked out to warrant building multiple units prior to running #3 in production for an extended time?