I have been on the fence about park 1 vs park 2 since I bought it. Park 1 is supposedly deeper but I never noticed that difference. I have been pulling silver and wheats 9-14" consistently with the 15" coil in park 2 (most of them I have on video on my YouTube channel). What I did read and have noticed is that park 2 is supposed to be better on small objects and since leaving it in park 2 the past few months I seem to be finding WAY more coins in "hunted out" spots and I'm suspecting that is because not only are they 8"+ but are on edge and park 2 seems to be picking those tiny edges of the coins out very well. Easy to tell with the Nox when you've found one on edge because you end up digging 2 holes. One for where you mis-pinpointed the target and the second correct hole 6" away. For some reason with the Nox a silver straight up on edge is hit hard on the right and left sides of the coil instead of the center. Pretty sure I'll be sticking with park 2 but I plan to do more testing on the deep ones next week. If theyre deeper in park 1 than the ones I've been getting in park 2 with the 15" coil I guess I'll have to start trucking in a backhoe with me.