Is this the real loudest whistle yet?

Ok so I was fascinated by this loudest whistle game that seems to be happening on here. So I printed several and did my own comparisons.

Firstly, I tried the surprisingly infamous V29. It was really quite mediocre, not that loud and requires loads of puff! Bulky too.

Anyway, after much experimental printing I came to the conclusion that Whistleblowers compact ones were the pretty much the best of the many I tried. I found that the original one (V1?) was slightly better than the V2, but bo