I love hemostats. My dad has a bunch with his flyfishing supplies so he let me take an extra pair for ponies. They make customizing G4s so much easier since they are so small. It was a pain in the but when I tried to use my regular ol' jewelry pliers.
I have issues with the locking thing because sometimes I will accidentally get it to lock when I don't want it to or I will pinch myself, but it is still pretty useful for ripping the hair out.