Congrats! Nice finds. I've found 3 rings in the last week. One was a 10k 1935 class ring & my first gold & the other 2 were junk.
I'm using a Garrett AT Pro & at first I was only hunting silver coins, I was only digging vdi's of 80+. Now I dig vdi's 50 & above since I've started looking for gold. My 10k ring was hitting around 55. Not sure how close the vdi's readings are from machine to machine.