I have same problem. Here's my observations:
I have 2 remotes and 2 drones. On remote that was taken apart and put together by me both drones flying at slight angle. On 2nd remote both drones flying dead straight.
I did 8km (16,4km round trip) with just ITELITE DBS NANOSYNC ANTENNA and 2 LiHV multistar 3000mah batteries. 38min flight time and including 5min hovering. Landed with 10% battery left.
There is app called Drone Assist, that can help you determine where you can and cannot fly. I'm only one using it?
NATS Drone Assist: helping you to fly safely by Altitude Angel Ltd
NATS Drone Assist: helping you to fly safely on the App Store
On eBay I would have to pay ~£1700 and there's very limited availability.
Apple Store showing available on April 3. I did phoned few bigger ones but non had them in stock.
On Amazon from £2000 to (!)£8599 for fly more combo.
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I'm not waiting anymore. Cancelled order on 9 dec, got my money back today (paypal)
I still want Mavic, but maybe I'll get it in June 2017.
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