Paul i only gave the bigger one a scrub with warm water and tooth brush.. i like them still looking a little more natural instead of all totally shiny with acids etc..
Looks like u are on a virgin Area , id be getting my hands on a 4 or 5000 and have a good deep look for more biggys on that property . Even an SD should help unearthing some beauties
You have achieved what most wont in a lifetime in this hobby , keep em coming !
Arrgh crap
I really cant say what the later machines are like near power lines .. thats your next bit of research in finding what will work best . Sure others will offer some advice .
Some gpz buying nuggets are just waiting