I start in fine gold then if it's too noisy go to enhance. If getting EMI I do an auto tune. I think I've only found 2 bits with this coil, can't remember, could be more. One was 1.85g the other was also around a gram. Haven't found any real small gold with it but going on the size of small junk it finds it should be capable. I've found a lot of bigger size lead shot with it, but you'll get a lot more lead shot with an SDC. Some rusty bits of ferrous are quite tiny. Jum I think you are right, SDC is just better on speccies for some reason but the 17x13 will go deeper on bigger, solid bits. My current settings: VL 15, GB gen, spec fine, man 176, gen, m slow, rx 11, aud norm, tone 45, stab 8, sig 16, TV 13, res norm, track med, IR off. Front panel: gen, spec, mono, fixed. Have used these settings on other coils too and found about 30 or so. Obviously some will change while you're detecting as you adjust to conditions eg. manual tune etc. Also I am open to suggestions for improvements to these settings. This 17x13 coil has been on my machine for a while now, found heaps of junk with it.