that's the way I do it...I presume you've practiced your tonguing technique?
(Steps away to let others enjoy the open net. You're welcome!)
I tried a Valkeen once, and as I hadn't realised this, I actually surprised myself when I blew it for kick-off, and probably made the poor bugger taking the kick go partially deaf for the game. Came in handy when a few hands were raised though!I must say this is why I like the valkeen, soooo easy to vary the tones etc
Quite sensitive tho so occasionally I start a half like I'm giving a last minute penalty