Just took a peak at Troy's data. He is currently predicting :
July = 76 (vs Elon 30)
August = 378 (vs Elon 100)
September = 2,502 (vs Elon >1500)
October = 9,038
November = 16,400
December = 29,068 (vs Elon 20,000)
This tells me that if you used Troy's estimator tool that it gave you a date earlier than what Elon tweeted tonight. By the way, I think Troy did a great job estimating this and will quickly be able to adjust to the new data, so nothing negative to him at all! I just wanted to share how Elon's tweet relates to the tool...