The gears do look cool but aren't all that light compared to what Will's new gears are going to be coming in at. 1st & second gears are just a touch over 7 grams, my scale says 7.10 & 7.15. Oddly second gear, which has the built-in spacer, was the lighter of the two.
Wow. It doesnt look like you could take any more weight off those gears.
The 3rd gear is the one with the sleeve, it is probably lighter because its a smaller diameter.