Was just looking into getting a gimbal saver. There is the killerrc one that I was looking at but I also found some on amazon that are made of cnc aluminum as well but instead of it being one sold piece it is two pieces and you screw the arm that goes around the front of it onto the backing plate that replaced the original. Are these ones any good? The killerrc one is really nice but its $48 US plus shipping and the other ones are around 25-30 US with free shipping. I know its not a huge amount but I would rather put the money towards another battery if both gimbal savers are equal in quality.