I called HPI USA to find out what they are doing about the ESC problems. The customer service rep told me that they are working with castle to solve the issue and it looks to be a software issue...But not confirmed on that yet. In the mean time they said that it would be best not to run 3S batteries. He also stated that they will try to put out the resoulution to the problem on their website but he was not sure how the company is going to handle that yet.
All ordered guys pls think about your order! Is it better to wait until HPI solve the problem first. Otherwise, prepare money to buy the extra ESC, or just playing with 2S batteries only!