I bought two pair labeled Cal-hawk off amazon for a bicycle clinic that are exactly like these and they look like pedro's clones but work better then the Pedro's. I've got the nicer park, and honestly don't see a difference between the cut quality of either of them. 6 years on the cal-hawk have seen a lot more use then my personal parks and are still just as good.
After the first cut if there's a small jagged piece on the brake housing I just turn the cutters and sort of nip it off, and use a niny philips to open the end.