Last week we got a new shipment of blade cp's in our store and a memo was included in the new shipments stating that there is an optional upgrade to the blade grips by adding a bearing to replace the orings to create a more rigid frame. EFLH 1162B is the part number I think. I looked on Horizon hobby and it doesn't show a photo but the memo included in the new kits do have an exploded view and I will have to review it much closer to determine if it's a total of 4 bearings in the blade grip pairs or just one. I'll get back with everyone about this later.

The reason is cause i have noticed the blades are moving more freely than should or than when I first got it. Sees as if the orings are getting too soft. But by adding an additional 3x6x3.5mm bearing would cause the blades to not wiggle up and down too much.