FBR Charts and Technical Analysis, page-108

Storm in a tea cup, they're dealing with a new design which is hard enough as it is and if you've ever had anything to do with mobile plant hydraulic systems, which I have, you'll know there's hundreds of faults or problems you could have at any given time. it comes down to once you have your design right you just need skilled people who know the system, to be able to fix and maintain it in a timely fashion..if you think the machine will never have any mechanical, electrical or hydraulic issues you're dreaming. Again, you just need the most efficient, reliable design, then trained, skilled and competent people to repair it when it breaks.