Another Coin Spill and Huge Surprise

This was my latest hunt in a completely unknown forest. My hunting area was limited because of trails and people with dogs. I had to stay ("invisible") in a small space between and could not move as I usually would. The hunt started as one would expect it in the "entry zone" with a "10 Rentenpfennig" coin from 1924. As soon as I found my first U.S. coin, I knew there could be more... A coin spill is always amazing. I love it and thankfully it happens quite often.
I have no idea how the coins made it from the USA into this forest. I could imagine some sort of military exercise during the 80s (a long walk + camp).
Now let's talk about the surprise. I was probably more surprised than you. It could be anything. It is very often a big chunk of lead with a weird shape. I was shocked the second I saw it. It struck me like thunder. It must be a Roman spearhead. I'm glad that I found the ring before. It helped me to focus at this tiny spot.
Unfortunately I could not enjoy this beautiful moment very long, because I was very upset about the quality of the signal. I expected a piece of scrambled wire at first, but "thankfully" I could remember a similar bad signal from the past (with a "deep" bronze object as a result).
I was running the Deus at 12kHz, 97 sensitivity, 3 reactivity, G.B at -10, disc at 0 ("disc" tone break at 5). What a bad signal for a solid and relatively big target like this. It was very difficult to recover the target (because of the soil and many stones), but it was not deep. I'm highly disappointed. Something a little bit smaller would probably not be detectable.
P.S. I'm running reactivity "3", because (in my opinion) "2" has problems finding small, shallow targets with the 1st (and most important) coil sweep. I showed this problem in the following video: • XP DEUS - Real World R...
Because it is impossible to hunt every area twice with different reactivity settings, I will be forced to find a solution in the future... Finding small, shallow targets is great, but missing objects like this (at normal depth) is simply unacceptable.
P.s. I hope you liked my macro solution with a second action cam. I will try to do more experiments in the future.
UPDATE: If you liked this find, check out my recent metal detecting adventure: • Find of a Lifetime! Me...