I sampled a bunch of targets today with the Manticore and made some observations. I used mostly default settings...
All-Terrain, General, Sensitivity 26, Multi IQ, All Metal
Observation 1 - The numeric display becomes a jumble of jumping around numbers (useless) well before max detection depth is achieved. The good news is target tone remains quite consistent almost to the max detectable depth, long after the numeric ID becomes useless. Some variance of tone pitch at the very extreme detection depth.
Observation 2 - Higher swing speed improves detection depth and tone, significantly, that's new. There seemed to be no upper limit, the faster the swing the more depth achieved and the more the target tone improved. Faster than I'd ever swing an Explorer.
Observation 3 - Manticore has finer granularity of target ID. Tone and ID vary even within a single coin type. See the silver dime samples below, tone and ID varied from 72 to 83.
Observation 4 - Coins at 45 degrees produced a distinctive tone shape. When swept from one direction the tone was solid and steady, monotone. When swept in the opposite direction the tone began at the same pitch then sloped down as the swing was completed. So say a steady 78 tone from one direction then a 78,76,74,72 from the opposite direction. That distinctive tone behavior will be a tip off that the target is sitting at a 45 degree angle. Though that is with the coin angled 45 degrees left to right. If the coin was angled 45 degrees front to back when swept that might produce a different behavior. I generally circle a target so no big deal but I will re-test.
Observation 5 - Hits coins straight up on edge quite well at significant depths. Greater than I recall the EQX 800 achieving. Strait up on edge coins also produce a distinctive tone shape, a double beep as you sweep across it. As if it's striking one side of the coin, then the other.
Another thing, the ID and tone pitch was consistently a few points higher than when the same coin was swept sitting flat to the coil. Perhaps certain frequencies are weaker on a coin straight up on edge, leaving other frequencies stronger and that is pulling up the ID and tone pitch. The manual states different frequencies can change the ID so there you go.
Observation 6 - The Manticore with these settings is a nickel thumper, really good thick/strong signals on them. Like silver dimes I saw some target ID/tone variance even within the batch of nickels sampled.
Observation 7 - Not so great all small gold with these settings, I think the EQX was stronger so I'll have to experiment with settings to improve that.
Observation 8 - Thumps gold rings strong, crazy depths on those especially that thinner womans gold band about the diameter and thickness of a nickel.
Observation 9 - As the manual states the numeric target ID can vary typically +-1 point even when sampled at shallower solid signal depths. I gave up recording the range at some point and just posted the middle or most consistent ID below.
Coin Samples
View attachment 44184
Gold Jewelry Samples
View attachment 44185