probably tried everything . Did the undercoating, comes off, really didn't help. Wrapped just about everything in camo duct tape, it helped quite a bit. Take great stuff expandable foam and fill in all hollow areas in the stand., make sure you don't fill in the space where your cables go in! On my summit, I put the comfort mat on the floor, it's quieter than having your feet on the metal, more comfortable, and will actually keep your feet a little warmer than having then resting on the cold metal.other than that, make sure everything is tight , and and moving parts like my footrest I oil with vegetable oil.