Offspring and I went to ball fields again today for some more practice with the At Pro and White's. I was hitting pennies like crazy! Got a Kennedy half dollar, and several quarters. I found 30 coins in all today, lots of fun! Now bring on the silver!
Looks like you're learning your machines quickly. Pretty soon you'll be able to identify those faint deep signals and start nabbing some silver, I'm sure of it.
Congrats on the variety of finds, nice job with the "practice"! The silver will come in time, and judging by what you are already finding there is little or no local competition with other detectorists leaving you with lots of stuff to find.
You are going about it in exactly the right way, getting to know your machine in an area with lots of targets. Soon you will be able to move on to an older site for the potential of silver.