Chris Hardeman is the only person to date to replicate any weight loss of Alexsey Chekerkov's Graviflyer. His notes and craftmanship were very well done. For a longer version of testing, check out the video uploaded to the lab's channels here:
   • Testing Chris Hardemans Graviflyer wi...  

Here is a link to more pictures of his notes:
https://drive.google.com/file/d/1KWZ7...

Chris' Channel:
   / @alexeychekurkovreplication9417  
@FalconSpace