I've got armor parts on my 25F in fighter mode on the stand. The main armature does wobble a little side to side when I walk by the shelf, but I'm not worried that it's going to fall. The normal fighter stand part kinda pegs into the front of the fighter in two places on each side of the fuselage. The armor comes with a different adapter that pegs into the fighter in three places. So, I'm not worried at all that the fighter is not attached to the stand. The other modes should be equally stable, the battroid especially so with the center of gravity lower due to the heavy legs and armor.