Minnesotan here have been detecting for 3 years with my ace 250 looking to upgrade. Mostly hunt in my area coins and jewelery but also do some prospecting out west a few times a year. Im looking at the exterra 70 Iv read a lot of good reviews but most are older just wondering if there is something newer or better for the same price range. Im looking at the pro with both coils. also wondering if I will notice the difference as an upgrade for the money?? I keep reading but seem to get more confused lol for now im just couped up cause its darn cold out there just chompin at the bit to get out again and considering a road trip to warmer area soon. Any help would be greatly appreciated thank you and have a great Christmas Don