Clear and Level Slinging Area
Choosing a good area to sling from is likely the most underappreciated aspect of safe slinging.
The reach of a sling, both loaded and unfurling, is greater than we can usually judge by sight. That might sound obvious but in the real world, you may be surprised by how often you end up misjudging it. The consequences are usually something slightly annoying like snagging a limb or picking up a dead weed in your cracker, but they could be much more serious. So choose an area with more than enough space between you and the closest tall weeds, tree limbs, people, etc.
Additionally, it can be hazardous to stand on slopes, uneven/bumpy terrain, and wet or muddy terrain while trying to sling. Slips, twists, and falls can easily happen on bad terrain. We have experienced this on more than one occasion while trying to sling from a river bank and the effect, among other poor outcomes, usually includes the projectile flying off in an unintended direction.
You will want to be just as considerate of the ground you stand on as the target you throw at. Look for level, clean, dry areas that will have plenty of open space around you, keeping in mind that you will end up at least a large step or two from where you started.
There has been a lot of speculation as to why the bow displaced the sling over time, especially considering that the sling could outdistance the bow for much of history. One theory is that the sling requires more space to operate. This is true and we should be mindful of this requirement. But in our opinion, the sling is much more fun and practical to use today and we think that most people who try both would also agree.