Well I got tired of my Explorer SE and its limited ability to find the smaller stuff including small gold jewelry. So sold the Explorer SE and started looking again. I had owned a G2 before and liked it so I found a deal on a GBP in the classified forums and bought it. Very happy I did this. The GBP will find my wife's 3mm gold chains with no problem where as the Exp SE would not even register on this even when rubbing the chain on the coil surface. The GBP will pick up these chains at 4 to 5 inches; impressive. I have both the 11" coil and the 5 " coil for the GBP. My 5" coil is the NEL Sharp which is very good but fits a little loose on the shaft see needed a shim. For coins the G2 or GBP are very good and I have found coins in fields that have been hunted with the Minelabs. I believe the faster recovery speed and superior performance in iron/ nail infested ground accounts for this. Some coins have been in the same hole with nails, etc. The GBP will go plenty deep too, maybe not quite as deep as the Minelabs on coins but I don't care to be digging 12" deep holes in my city parks either. 8" on a dime is no problem for the GBP. It actually finds pull tabs deeper than this due to the higher frequency maybe. I am mainly looking for gold jewelry these days so this is the right detector for the job. Has manual ground balance which you need to do correctly to get the best performance. This is not automatic ground tracking so need to check this in all metal periodically. I imagine for gold nugget hunting this is a very good machine. In all metal the readout will display the ground balance setting vs mineral levels so you can see when you are drifting off balance. I like the big target ID readout scale and numbers; easy to see with these old eyes.