If you're managing to grab a section of the tube while your working the tire off the rim, you'll create a hole, no matter which levers you use. I find that I have to make sure the tube is fully deflated, then make sure the tire bead is free on both sides of the rim. That usually creates enough space to get a lever under the bead without catching a piece of tube. With some rim/tire combos, I don't need levers at all, but those aren't as common.