That is not allowed. Put it back. Not supposed to work that way.
Seriously...5-6 years ago I had just gotten a 10” Slimline coil for my Explorer2. I went to a public park that had given up some nice old coins, got out of the car and started swinging. Not 3 minutes later I got a really obvious 00-29 signal at 4-5” deep....straight up quarter signal. Dug a plug and an 1877 Seated quarter rolls out. Mic drop...right back in the car, went home. It was the only thing I ever dug with that coil, sold it a short while later cuz I was on to other things (the CTX). So I know where you’re coming from, I can totally relate. I’m still looking for that Capped coin though, I’m just a wee bit jealous...