I wouldn't hesitate to buy the Pedro's tool as it's as shop worthy as any Park tool. I'm surprised any splined BB tool would fail though as the splines of cartridges are usually the weakest link, especially if aluminum. Some cartridges also have notably more shallow splines, notably the RPM/FSA 7420 models. Shimano and Tange are nice and deep. Making sure the splines are engaged fully is also a no brainer regardless of the tool or BB.