I use an Ace 250 for land hunting, but I have an Excalibur 800 for lake hunting. I was wondering had anyone compared the Excalibur and the AT Pro & if so what your results were? I'm considering getting rid of the Excalibur, even though I like it, & try something with number identification. I'm thinking that I might dig less trash. Please help if you have experience with both machines. As always, thanks a lot! HH!!