Two whistles

[HertsFinest]

Well if your able to get high pitch tone out your whistle charlie then I'd say there no need for 2 whistles

Yes us amateur refs that use two whistles only do so due to not being able to get a high tone.

 

[hattersfan]

Is this thread still going...?

 

[ref craig]

Yea

 

[DanCohen17]

Not any more it isn't.