It really does help. It took me a long time to use the smaller coils more often. You have to be patient and force yourself to work an area with a small coil. In the beginning I'd try the 5" coil with my Explorers and I hated using it. Took me forever to cover ground. I just knew I was passing up deeper targets that were probably just out of the range of my small coil and I would do ok with it but nothing like the finds I would find with the stock coil.
Then the E-Trac came out and it opened up my pounded spots again. Then they went dry again so I decided to use a 6" coil that had been gathering dust. I left my stock coil home and went to one of my spots that had produced but is loaded with trash and iron. I stayed most of the day there and came home with a nice collection of silver and wheats. Every good target came in at about 4 to 6 inches. The numbers were ugly but the tones I listen for were there and they were repeatable. Once I knew the 6" would produce well for me I started using it more and more.
I have to use my 5" or 6" coil like a paint brush and I have to move slowly through the trash with my coil on the ground. When I say slow I mean step swing, step swing and I kind of double swing each area (guess I mean overlap). Its a slow process but when I started using this technique the non-ferrous targets just started jumping out of the ground and if your in an old spot that you know has keepers you'll go home with some in your pouch. The CTX with the 6" coil is a killer combo but you have to have the inner desirer to gut it out for a few hours and not get discouraged if you get skunked.
When I hit a new spot in an old area like an empty lot I start big and work my way down to the 6" coil. Hope this helps! HH Randy