I just got 15 talisman fragments with +1 to all skills upgraded, so i tried getting Masonry up. At level 60, it says it gives -100% to gem socketing time, so it should be instant. But it's not. Quicker than previous levels, yes, but not instant, takes like 2-3 seconds at 1x speed.
And I thought I could no longer care about resocketing beacons and possessed giants :C