Pardon my interjection, the delay has been attributed to a few outsourced carbon fiber parts not being up to standards, so they are waiting for replacements, and also replacing a photovoltaic panel. Can't remember the source, sorry.
How much easier it is to be critical than to be correct.
Benjamin Disraeli
Where are you going to find the most intelligent, educated and capable crooks? Follow the money...... wall street, and the naked short is their best tool. - Mt bigsky