Bought a new Legend (my first) and it's running 1.17 so cannot compare to previous versions.
Have just moved house and garden is full of lead, buttons, and yes maybe hammered
Using the Legend in field, nothing altered apart from dropping sensitivity to 25, got a strong 32 but the f/c was showing full iron apart from one direction where 1 bar of non ferrous registered.
Surprised to find a piece of lead at probe depth, nothing else in hole, even checked after putting plug back.
Manual states that a "strong signal" is required for f/c to work, which I had.