The BFS has taken wayyyy to long as we all know but the likely hood of it's time frame being manipulated for what ever reason's are very high. It is doubtfull that the reason for delay is due to problems because Ernesto would be one of the first to know and he would have quit investing. A huge sign that we shouldn't forget is the fact that they shut the drills down early. It's only logical to assume that they didn't need anymore core to complete a good BFS. If there were any doubts they would have continued drilling in hopes of finding higher grades and more volume. Cuu has been in a game playing mode since the drills stopped turning.