A:AnswerThe plates do shift and rattle. It isn’t significant enough to change center of gravity in a noticeable measure. It’s a choice between buying 7 separate pieces or 1 adjustable. Hope that helps.
A:AnswerYou pull the tab on the top out and then swing it to the unlocked position. This lets you remove the metal plates in the center. They easily slide out to one side when the lever is unlocked. You will have to do some math to figure out how many plates to remove for whatever weight you want. Remove the appropriate plates and then switch the lever back to lock. Once it’s locked and you can’t see the red icon, it’s good to go.
A:AnswerPossibly, you need to slide out the top strip, which takes a bit of effort and index finger strength. Once open, it's fairly easy to slide the weight disks out.
A:AnswerYou have a good amount of flexibility. There are six removable plates. 2 are 6lb, two are 5.5lb and 2 are 4.6lb. That means the bare kettle bell is 7.8lb. You can make any combination of the weights that you like. You don’t have to have all of the weights in a row…you can have gaps between to get the weight combination that you want. I could do the math to show every possible permutation…but so can you with the info provided above.