I have the v80 and have used both coils. I didn't like the large coil, it certainly not deep. The small coil was great. Both coils have great separation and the main screen is very informative, which was why I purchased it. I will most certainly use this more, but I'm out with the manticore and the m8 trying to find my wife's grandmothers ring that I have about 2 and half acres to do from 17 years ago. So I have to do serious work with these modern machines like legend and deus2 and the manticore, and on the side play with this v80.