I hunted in the GEB SAT Mode. I really like this mode. G/B to wet salt/fresh water beach, black sand,. Yesterday dug 4 dimes 9 nickles 1 QT, and a 8" 5.5 gram 14kt bracelet. Today a 17 14kt gram mans nugget ring that had been down there a long time and was black as the ace of spades also 7 nickles, 3 dimes, 2 Qts,. Used the 5.3" coil worked a 15 X 5 step area today and yesterday about the same size area. I was digging 0 to 30 Id numbers mostly. Yesterday and today was a total of 113 round pull tabs, broke beaver tails, small round pull tabs with the beaver tails, large round pull tabs with beaver tails and a hell of a lot of small foil. So I would say for a 6.5KHZ machine it did very well in the wet salt sand salt/fresh water beach. So the area I covered was about 30X10 steps. I was digging targets down 8"s with the 5.3" coil. All I got to say is 6000XLPRO is a Excellent machine. Best whites i ever owned and even beginning to like it over my MXT. M6 don't even hold a candle to this machine or the MXT. Really disappointed in the M6. M6 has crappy scratchy crackley audio, tones are not clear and crisp like the MXT, the multi tones are dull and not sharp. on the M6. Not to mention how much it lies on a deep target after 6"s. Let me put it to you even plainer, the M6 SUCKS. Worst Whites machine I ever owned. It is going to take a road trip to Whites tomorrow. I don't have 4 hours on the machine , trust me, it ain't no MXT that is for sure. I know it has to be broke, so far as I am concerned they can send me a new one. Later Jerry aka Tinfoil.