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Liam has both but the old one needs to be measured full of water. From a performance point of view, the swing weight is also important (weight lost at the ends has more importance).
I have new rudder assemblies here I can weigh if that helps?
What I can say is that the 'new' rudders are substantially lighter prior to going on the water and then of course even more so when you come off the water as there's no ingress during sailing..