hello Domagoj
My 54m under ice is not official... but I do have witness.(soo no result less than 54m will go in as a an unofficial WR in this event on apneamania, and i will not publish any record before someone have done a confirm 55+)
...more importent is that this is not an official-discipline and there is no rules that regulate, and no judges to confirm. But if you want, a can come as a judge to confirm the result if you/or someone do it the "AIDA-WAY".
On Apneamania you will find the result under "special records" ...and it will soon have it's own "special category".
But remember, this is NOT an official category inside of AIDA-FREE-CMAS or IAFD. ...but I will publish the best result we know on apneamania. In the beginning we can call it Spectacular or Amazing Apnea
best regards
Bill