How did you pack grease into to pivots??? All it take is a little spray lube under the rubber covers and into the pivot joints. If you packed red bearing grease into either of the pivots could be adding to the issue. Red bearing grease is a little thick and sticky for that type of joint.
I think he just used the grease on the pivot shaft, down by the left foot board.
I feel kinda silly. I always try and make sure to use some grease down there when I have it apart, but I've never thought about giving a squirt of lube under the rubber booties at the knuckles on the arm itself. DOH!!!