Ok Monte and the rest of you gamma 6000 owners i just bought a gamma 6000 as a back up detector for my Omega,ok Monte you were right lmao.Well anyway after assembly yesterday and fitting the 5inch coil from my omega and briefly scanning the owners manual which i should have read better lol i headed acroos the lake to see how the Gamma would perform...having the Omega 8000 and knowing how to groundgrab with it i didnt pay much attention to the gamma section about groundgrab figuring hey i know how to groundgrab the omega the gamma will be the same...NEVER assume lol.So i go to the park i hunt set the sensitivity at 80 the volume at 8 and enter the all metal mode to try and find clean ground, once that was done i switched to the groundgrab menu to pump the coil up and down to my surprise all it would do is give thart groundgrab alarm and and two flat - - on the screen with out locking on a specific groundgrab number.Im thinki ng whats wrong with this my omega always grabs the ground in no time locking on a number and im ready to go,wel not so here so i try a few feet away the same thing over and over again the alarm sound and no ground grab lock on number unless i released the groundgrab push button..So i switch back to disc mode and start to hunt to see if it will work this way,to my amazement the Gamma perfprmed like a champ im hunting with 4 tones sens at 80 and disc at 40 and this thing is singing the high tones all over the place.I hunted a small area by one of the ball fields and was hitting pennies dimes and quarters all over the place yes all clad but even a few coin spills on with a nickel id and with a high tone not knowing what to expext but yes was a nickle and a dime in the same hole.Must have found 20 plus clad coins in the hour i was there and the 5 inch coil and the Gamma performed great.I tried a few more times to ground grab while i was there with the same results loud alert with the two - - straight lines on the screen.I headed home and picked the owners manual up to read the ground balancing section more carefully to find out if i was missing anything, lol guess what right there in owners manual it states if your ground balance is 40 or below the gamma will not ground grab and will give you an alarm and the two - - straight lines on the screen.I read that twice thinking damn it does work diff then my Omega...So thinking i had a problem i guess in reality it was doing what it was suppose to but was just my error in thinking it would lock on a ground number...Most times with my Omega it will ground grab in the 50s somewhere never in the 40s so not sure whats going on with the gamma unless its just set to where if you dont have a high ground number it wont lock on and is more automatic similiar to the delta,any one else have this type of experience with your Gamma?..Its going to be a great addition to the Omega being able to have two diff coils on and not having to change each time the hunting conditions call for...I look forward to all your comments and any help you Gamma owners can pass on to me...Have a great week hunting....Markmac