Dear Sir or Madam,
I would love for my DJI Phantom order the float 3 Professional / buy, but as long as I see no visual proof by means of a video that float also work you sell here, I'll refrain. Finally, the float cost the couple $ 428.40.
Please make a video with the swimmers at the start and landing on water.
I've even float tinkered for DJI Phantom 3 Professional with video, but see for yourself.
"Float for dji phantom 3 - DJI Phantom 3 with float - Test"