Congrats on nabbing the Golden micromax! Give yourself time to learn it's nuances. I have the older tone configuration that keeps the tones in the proper conductive order. Both versions will do the same thing, they just switch out the two middle tones and the new version spreads the tones out a bit better. I have had no trouble discerning the two middle tones with my older version.
I can offer three insights from my own experience, first, I think a fresh 9-volt is key to the best depth. Second, use as little disc as you can stand, with tones, you can do that and not dig everything, but sometimes the iron and other junk gets thick and you have to turn the disc up to avoid insanity. Third, I prefer a smaller coil. The 9 x 8 sometimes offered too many mixed tones and it often gave a high tone on deeper pulltabs. Once I put the 7" WS on it, all that changed. Bottle caps rarely fool me, deeper tabs don't come in with a high tone, and there is better separation or distinctiveness to the tones. Mine was sent in to be calibrated with that coil, for best possible performance.
Finally, ALWAYS dig that nickel tone (the lower middle tone on mine) cause those are the range of the smaller gold rings.
Good luck.
