I'm sure if it's peacetime and thier new recruits, ya, the cherries went without slings, and after the drills, if they didn't perform to standard, got raped by thier seniors. But in actual combat, sling, slings, slings, and more slings. Thier slings had slings. I suspect the sling was the reason the romans tended to get the better of the hoplites, it obstructed thier local slashing movements when thier spears failed to keep the Romans away.