the aluminum shaft I shot made an unusual noise when loosed, yes. high-pitched "ZEET!" sorta
and the string hummed with metallic glee
and the target point turfed 40 feet away before the first recoil vibration had cycled in the bow.
I'm serious: this Mad Bastard sucker SLINGS an arrow
I'm sure you two will be very happy together.
[Seriously, sounds like a mother of a bow. Congrats!]
The only other time I've personally heard an arrow make unusual noise was from what was referred to as a cantilevered compound bow(Any such beast? I wouldn't know.) and the arrow went "ger-ZINK!".
All I know is that this bow had compound cams and the bow had an odd shape to it unlike usual compound bows.
If the arrow made a high pitched noise, I'd say it beats the bow I saw as the "ger-ZINK" noise was lower down on the tone scale.
(Think rubber ball hitting aluminum bat sound.)
Check the arrow for unusual warpage as well...