I got out for about 1.5 hrs today, I used my 6x8 sef coil, the ground was semi-frozen and hit solid ice after 3-4 inches in some spots. I only found .76 cents clad and the usual trash. I think I'm gonna use the stock pro-coil until the ground is completely thawed. This is a upgrade from my Ace 250, so I need some more hours on it to know the tones better,as expected. I am satisfied with the sef coil and will go back to it after some time. The temps will be warmer tomorrow, so I'll try again.