Yeah, the method of healing doesn't really change. CLW wands are Will half (harmless), like almost all healing effects, so poke 'em harder. The save DC won't be great (DC11), but 15 gp / 2-3 hp is still one of your better conversion rates. Plus, wands are much easier to make or buy by the truckload. You could also try Troll Styptic. The nauseating factor of the remedy might make them more... amenable... next time.
Spellstoring whip against armored targets. Healers only though
Spellstoring weapons only affect creatures that take damage from the attack. So a Spellstoring whip will not affect targets with armor or + 3 or better natural armor unless the wielder has the ability to damage such targets with a whip.