Hi, I have an Excalibur II which I use at/in salt water beaches. Probably 80% of the time it's in the wet sand, but I do go in the water occasionally. Was talking with a Sovereign user at one of the beaches, and I did like the idea of using/swapping different coils. My understanding is that the electronics of the two are basically the same. The thought I'm having is that I'd rather get a sovereign for the days when I'm not entering the water, rather than trying to set up the Excal for the ability to swap coils. I believe the waterproofness of the Excal is strongest if I don't alter it, and buying a Sovereign for the ability to swap coils gives me a second/back up detector. When I'm on the wet sand I do like the thought of covering more ground by getting one of the large coils. So now to my real question, what am I looking for in a Sovereign? Models? Coils? Accesories? I appreciate all the help/opinions/info anyone can send me. Thank you, Artie