Hi 
I`ve got an expierence with theese guys https://sharkdivers.blogspot.com/2010/09/no-your-limits-project-great-white-2010.html
https://230news.com/space-uid-149634.html
https://ffp.fi/memberlist.php?mode=viewprofile&u=33601&sid=6fcab20dcc441447aa66e6c3fbce19f4
 that were mentioned before. 
And I watned to claim thanks!