Super B Headset Cone Remover Review

I tried to use this to remove a bearing ring on an old Bianchi (1 inch stem). I couldn't get him to grab the ring and he was already down, engaging the threads of the adjusting nuts. Only the paint on the fork crown flaked off and I still had to knock off the race with a screwdriver and a hammer (not perfect). Maybe there's a trick I don't know, but I couldn't figure it out.