Just a note that officially the signup bonus does not qualify for the bonus point promo per that promo's terms and conditions. In the previous version of that promo sign-up bonuses did count, however it is possible that they could fix that loophole for this promotion.
Also, initial sign up bonus promos are generally higher immediately after a new card is announced, and eventually drop to a lower level. Not sure if this will happen in this case but something to consider.