Thanks for the replies!! If I do get one, I would go with a slider plate mount. I have been wanting one for some time, but just afraid to pull the trigger. I love the idea of spot lock to stay on bush piles or just hold postion while im busy in the boat. I hoped that the latest GPS units would hold pretty tight to the spot. But maybe not. Bigkahuna, Dr Jag, do you guys bass fish with your units much. I tend to beat the banks alot and just wonder about manuverablility with the Ulterra. I may see if I could have my MK Fortex mounted on a slider plate as well? Then I could switch out if needed. Thanks, Bobby