I recently ordered 2 new Excalibur IIs, an 800 and 1000. The 800 finally arrived and my initial impressions are favorable. The 1000 is on back-order. I know that BBS detectors do not air-test well, but the new 800 does appear to be more sensitive to gold rings. This observation becomes immediately clear. It was almost as though I was air-testing my 8 inch CZ20- which does very well. I was even impressed with Excal II set in AUTO sensitivity. As I have been told, Minelab added some sort of electronics shielding, plus changed the coil to their Slim Line. I have no idea if they changed any of the electronics, but the Excalibur II does seem better. The small 800 coil seems more powerful/intense. I think that will be reflected positively in the field, and that would be fantastic news! But I will have to wait until February, before I can make my next Caribbean treasure hunting vacation and find out. Since I have successfully used Excaliburs for shallow water hunting, I should know within a few hours of actual Caribbean field use. I do prefer the Excalibur II quality looks and will post my finds as soon as I can. Other Excal II users should do so too. The photo is of last years, 1 week Caribbean Excalibur gold finds. CC.