thanx adrian. i agree with you, but i just dont think you should have to do this modification. it should of been done by associated unless its a defect. i cant imagine associated expecting everyone with a rubber kit and itf chassis to have to counter sink a relief in the bulkheads. for example the tamiya 415msxx has a 2mm chassis and the screws fit flush and perfect so maybe they just need screws with a smaller countersunk shoulder?? i mean its no big deal for me cause i have access to a machine shop but alot of people might not or have the countersink bit. just my 2 cents.