Settings for Large Mono coil with M?L 4500

Just need some help on settings on my 4500. I have been running my Commander 18" Mono and had some success with it. I am amazed at the depth found some nice 3 gram nuggets at 12-15 inches. These are my settings..front panel General, Normal, fixed and Mono, back panel rx 11-13, stabilizer 9-10, speed slow, tracking medium. My threshold adjustment at 2..I have to admit my ears are tired because of the ground noise. The ground I am working is variable..medium to some hot spots...I would like to try out some different settings. Any recommendations to stabilize the machine would be appreciated.

try the following:

audio type: quiet
stabilizer: 6
rx gain: 10

Hi Relichunter2, I would try enhance with the gain up as high as you can go.

Another strange setting that does work in a few places where enhance is noisy is Sensitive Extra. Try it for a few minutes with the gain on say 8. Your coil swing speed should be very very slow. The detector may give you broad groaning ground noise but you will clearly hear nuggets at depth through the ground noise if you move your coil very slowly and you smoothly do the transition the swing direction changes. If you want to reassure yourself the setting is sensitive swing your pick above the coil and you should pick up the signal with the pick way above the coil whereas other settings the pick will need to be much closer to the coil. Even on a gain setting of 5 the detector should pick up targets some distance from the coil. The sens extra setting has found me a couple of very deep nuggets, however many other people frown on this setting and say it is unsuitable in noisy ground.
Tributer