Only familiar with the 705 Kezz.
Nuggets over 1gm will be found a lot deeper, would expect to hear a decent slug down to 6" or even more.
if your FNQ nuggets are on the chunkier side or have a foil shape the 705 would perform better than on our NSW goldfields where you may wander for days for a couple of subgramers. We do have a lot of relic sites on our goldfields, and I have met some happy couples that swap machines or one partner just chases relics and have a great time. Others use one machine and take turns supporting the other, sometimes with a rake in hand.
Nuggets over 1gm will be found a lot deeper, would expect to hear a decent slug down to 6" or even more.
if your FNQ nuggets are on the chunkier side or have a foil shape the 705 would perform better than on our NSW goldfields where you may wander for days for a couple of subgramers. We do have a lot of relic sites on our goldfields, and I have met some happy couples that swap machines or one partner just chases relics and have a great time. Others use one machine and take turns supporting the other, sometimes with a rake in hand.