Not exactly a tech question so I apologize if this should be somewhere else. On my Mata Hari machine I've noticed that some of the plastics are getting scratched from underneath. It's happening where the top plastic has no screw hole in it, but the post below it has a screw head that's scratching it. That screw is of course holding the post in place. Notice how the word Targets is scratched in the 2nd picture. I have 6 or 7 different spots where I've noticed this happening. In other areas shorter posts were used so the the screw head doesn't touch. Is there supposed to be shorter posts under all the plastics where there is no screw hole in the plastic? Or is there some sort of protector that I'm missing. There's a plastic washer on the right in the 1st picture but that's not going to help on the left post. Thanks.