Hey mate just saw this thread as I havent been on the forum so much of late
If your Pistolprobe intereferes with the ETrac do a noise cancel with the Pistolprobe turned on and held close to the ET
Same goes for the Garrett - mine occassionally can interfere with my ETrac so I do the same thing to fix it
the ET noise cancel swaps channels or whatever it does
I carry both when hunting modern as the Garrett does not go deep enough sometimes
My pistolprobe is carried in a shoulder bag and has bright yellow safety tape stripes so it looks less like a gun when in public places.

NSC