XP Hf 9x5 coil is the most incredible coil out there.
I went out with our club today with the use of the xp deus and the 9x5 coil. I got a squeak of a signal, no VDI or depth indicator, but was repeatable. I asked another club member to come over as he had a 11 inch coil on his machine, but he could not hear it. I again went over and found the repeatable signal, dug down 1 foot deep, could find it with my pin-pointer, and with his in the hole after digging one foot deep.
After a few more tries with the shovel I gave up on the target.
I do not know what the target was, but it was a repeatable high toned signal on the xp deus.