Landing gear weight is pretty much the same in a well designed system. The ability of Spring steel, aluminum, and fiberglass is about the same for the same amount of energy absorbed. The issue is well designed, and for many situations, actual service in the field is also a good indicator of suitability. Sometimes it's a matter of available materials and resources. The KR nose gear seems a bit on the weak side from some reports. As Larry says, your results may vary.
My opinion is there's not much to be saved, but I would make the gear a bit longer, and move a bit forward. Ron Freiberger mail to [email protected]

