Jupiter was clearly pushed out under too much pressure - let them a few weeks more time to tune batch 1 to its best 
Batch one has been being tuned for the past 6 weeks. It overperformed (550Ghs) compared to what it was sold at (400Ghs) and Batch 2 overperformed again (650Ghs)Yes there will always be some poor performing boards in some small percentage of machines but I think in the whole they did a fine job of over delivering and then improving on that delivery.
My Batch 1 Jupiter has been performing at around 540 GH/s and I've been pretty damn pleased with that, but now with the tuning suite its been stable at 563Gh/s so I am over the moon.