What sort of upgrade is this? No motors or controller. I'm also sure I have seen this video somewhere else months ago.
@iceman - in answer to your questions:
1/ This is an upgrade to the PH hardware, the motors need new mounts, they need shafts, the tilt shaft needs support and a bearing otherwise the tilt axis will flutter, there are updated drive mechanisms for all axis, roller drive on the roll replaces the tooth drive, the belt drives on tilt and pan have been upgraded to roller drives [even tho the pic I posted still shows a belt on the pan]. There has been lots of trial and error to get this upgrade right as you might imagine. Regarding the third party hardware - this is all readily available kit, if you like I can link you to Tiger motors and any one of a number of outlets for the Alex Moss boards, but look at it this way - if PH were to supply the motors and boards there would be additional cost to the customer , they would have to import that to NZ pay the taxes and duties and charge a markup on the gear for handling it and keeping it in stock - end result a more expensive end product, I think this way is best for the customer at this point.
2/ The video you saw months ago was one I posted from the same location when PH were looking at an upgrade with the very expensive Maxon motors - these are the motors used in the high end Gimbals and have almost no cogging and a high enough torque to control large DSLR directly, the beauty of this new upgrade is that you can use a cheaper motor as the axis are geared so less torque is required and the cogging is dealt with by the gearing effectively giving the motors a greater resolution.
I think there is a real place in the market for this gimbal, for sure it will be more limited than the full blown systems emerging like the Movi and Photohighers own Halo system but it will be a fraction of the cost. Personally if I get a good solid performance from it I would rather fly with this that a 10 - 15 K alternative.
It may not be for you ? Who knows, but I can guarantee you there is a lot of interest in a gimbal that will handle large DSLR or BMCC at this price range, and as I said in my post this is a heads up - they have only 60 kits in stock ATM.
Peace