Looks less formal than those others.  Would have enjoyed being there.
timann

I always wonder why they always sling at such low power and "arc" the rock a lot for me at least it would seem to be easier to sling at about 70% power and then I wouldn't have to worry about angling the tragectory of the rock as much. Anybody know?

I sling at 80% for a few reasons

1.  consistancy/control.  At 100% I'm very sloppy.

2.  Look at the age of some of those slingers.  If I slung at 100%, I'd blow my elbow out in a year or 2.  I wanna sling until the day I die (hopefully as a very active old man).

3. I can sling all day without fatigue or injury.  More practice = better accuracy.

4.  Good form with less force usually equals the power produced with max force and bad form.

5.  A 4 ounce rock slung at 80% with a 30 inch sling can cause a lot of damage.

6. Better to hit a target at 100 miles an hour than to miss at 120 miles and hour.

Seems to be a good distance of about 50m. At that distance even a fast shot begins to look fairly curved.

Nice vid, David.  Just in case anyone else is having problems, the first three times I tried to watch this I was unable.  For some reason I can't watch this fully expanded, but as soon as I tried it regular size it was fine.  When slinging for accuracy and not just pure distance I also sling at about 80% power now.  It makes a huge difference.

Curious Aardvark wrote on Feb 20^th, 2011 at 1:16pm:

To clarify the origin of this unusual target, initially had the defensive function of cattle livestock against wolves and bears. For a long time no wolves or bears, unfortunately, so the pastors used the sling to correct unruly sheep or goats grazing  the plants or soil not allowed. The intention is to hit  slightly, but many pastors have confessed to me accidentally wounded or killing even some.
http://www.youtube.com/watch?v=XENlaEIHTGI&feature=player_profilepage
In this video of  the  maker and slinger master  Diego Camuñas in 1,25 minute one buyer say that he kill a goat because it is greedy.

Yes, yes, Rockman, he does it intentionally, saying that the goat was greedy,"golosa" he say in spanish, suggesting that she ate usually in forbiden place or more probably fruit tree. Finally this day he threw  with bad intentions. It's a moment rage fruit. You don´t forget it's a big loss for pastor.  The goat finally are eaten. I'm not sure to explain correctly in english (Rockman help me please, if my words are confuses) . Be patient with me, I'm learning english and slinging.