No way... Especially not on a cuff button. The FBS Minelabs are excellent on high conductors, and they are alright at relic hunting, but FBS detectors really need to be scrubbing the ground with their coil to allow the machine to auto ground balance and set sensitivity levels. In the woods it's difficult to keep your coil on the ground without getting it hung up on everything and the Fisher/Teknetics don't seem to have any issue with the coil raised above the ground. Minelabs are really for park guys and coin shooters who detect manicured lawns.
The Explorer/Etrac/CTX lack a true threshold based All-Metal mode like the F75/T2 has.
All of this,
Plus once you get into your nail beds the minelab really struggles while the F75 pulls the good good stuff out.
p.s.
the F75 is pretty wicked in all metal mode.