Thank you Sebastian,
I think I interperped your formula in the wrong order,
I did 72 : 5,5 = 13,0909...
13,0909... * 12 = 157,1
Now I finally got the way you read your formula. When I put some brackeds arround the last part of the formula, I finally get your 1,09 BLF.
72 / (5,5*12) = 1,09
in Letters: M / (VC*12) = BLF
I better eat work out an rest more to gain more weight
Yes I ment your Freediving Dahab Competition when I spoke of 'Noseclip-only-competition'.
Maybe it's an idea to nominate Eric Fattah his CWNF's dives done currently in the Bahama's as the noseclip only CWNF World Record? Eric's methods appear to fall in line within your set of rules.
All the best,
Kars