Is there any differance in the outer plastic coating on quad shield cable vs the normal stuff? i was under the impression that the quad part was what had to do with the ability to bury it. but ive been told by knowledgable dish installer that it has more to do with the number of foil wraps inside and the ability to keep out RF interferance, and that being as i am going to bury it , thats like 10x beter as far as interferance blocking ability and that quad would be "overkill" what do you guys think? i have a 200ft run i need to bury...what would you use?