I spent about hrs yesterday training on the golden umax with the 9+8 coil, I dug the nickel tones and pull tab tones , I noticed some pull tabs came in on the (N) tone but I learned the pull tabs give off more of a hard sharp tone than a gold ring, it's the only detector I had that does give a different tone between the two targets most of the time, once I learn everything about it I know this will be my main detector , I did use the CSC but in trashy areas it's tough to lock on to the target, but the stock coil is fantastic , and each coils has its place, good luck HH tigerhank68