In reply to The Climbminister:
Hey guys, admittedly this topic is rather humorous as given by the number of sarcastic comments. Whilst I assumed all whistles were created equal, this one is rather bad. I think I'll either have to hone the technique or just give up on it together.
I think you'd find that if any of you had the same torch, you'd have the same issue, it's pretty difficult to achieve a remotely loud sound with having to use all the air in your lungs in a single go.