Well our tests illustrate the thing can lift ~ 150g on our test bot. I am pretty surprised. Looks like the 422 can only lift 35% of it’s stall rating.
(57 x .35) / 3.5 = 5.7 ounces
Well at least it’s officially defined. 
I doubt that 35% is valid for all servos. The 422 is low on the ladder.
That’s all good and well… in theory. If you add up the weight of the rest of the gripper that it also lifts (an additional 4.56oz) it looks more like this:
(57 x .63) / 3.5 = 10.26 ounces
63% is a little better than 35%, yeah?
Yeah I forgot about that. That looks a lot better. lol Thanks for the correction. 8)
