Hi la, I have the Sea Hunter II, but I cant claim to have used it extensively, because I dont live on the coast. About 12 months ago I bought an Excal II, but have not had an opportunity to use it in the water yet, so I cant really compare. I have found a few gold rings with the Sea Hunter, one of them a tiny child's signet ring, but it wqas only about 2 -3 inches down. I have found a couple of bracelets, both silver, one large and one small. The small one was only about 1 -2 inches down, and the signal was merely a blanking of the threshold. I have used it with the 8" coil and the 14x10. Both coils give good depth, with the 14x10 finding larger stuff (watches) quite deep (cant say exactly but it took a while to extract them from the murky depths). If you enjoy not finding hairpins with the excal, be prepared for a big turnaround with the pulse. After a while you get to learn the signals, but you can still be fooled. On one occasion I had dug about 6 or 7 hairpins in a row, and was confident I could distinguish the signal...sure enough, I got a signal and told myself it was a hairpin, but dug it to see, and sure enough, it was....very confident now I got another signal, quite a good one. This was no hairpin, and I was right....it was two bloody hairpins clipped together in the form of an x. The sea hunter will find good stuff, but how much deeper than the excal it will go I wouldn't even try to guess. The small ring I found with the 8" coil also registers with the 14x10 coil, but I haven't tested it for depth in working conditions. All the best.
