If and when you try to detect a truly filthy, trashy park and find the 9.5 and the 14 unusable, you'll understand why the small coils for trash. They do give up some depth and of course cover less area per swing, but that's why they can pull the goodies out of the trash. My first run with my MXT was in a very trashy park. Started out with the stock 9.5 and within 5 minutes discovered it was nearly impossible to hunt with it. As I bought the machine slightly used with the 4X6DD and the 5.3, I changed to the 4X6 and ended up pulling out quite a few coins from between the pull tabs, bottle caps, pieces of foil and other assorted crap. The difference was like night versus day. Love the 4X6dd shooter coil. My two bits.
HH
Bill