I would add that the more people you have with you when you throw your LD's, the less chance you'll have of losing a boom in tall grass, etc. More eyes on the landing/crashing location will ensure better chances of finding your errant boomerang. I just went thru that deal, but luckily, my bud David Hirsch found mine for me after it had been lying out there in the Texas sun for over a month. It's unharmed, except for faded paint.
This question has been asked several times on the LDboomerangs email list.
So I will post a few possible answers here starting with Clay Dawsons:
LD booms go an incredible distance,
sometimes with a return, but sometimes without returning.Â When the
boomerang returns you are at risk of injury.Â When the boomerang doesn't
return, others on the field are at risk.Â Modern LD booms have a teardrop
shaped flight, very different than other booms you've thrown.
Only throw on a HUGE field where people are hundreds of meters away.
Take a friend to help you spot the boomerang while it flys, but first tell
the friend all about safety.Â Make sure your friend knows when you throw and
is watching the boomerang.
eventually, I will expand on this...