You must be doing something right, the coin tally is proof of that - nice work Rocket.
Those deep thrips can be pretty dodgy signals if sitting on edge due to having such a thin cross section, that's when I use pinpoint mode to do some target sizing much like I used to do on the Ace and Explorer.
Despite those on edge thrips sounding crap from surface at times, pinpoint mode will still give a reasonably strong response to such coins, vs small non-ferrous junk targets which tend to give barely a blip when pinpointing (typically small flakes of copper in my area). The last two deep 1800's thrips I found were picked up via scanning over the target with pinpoint mode.