Yall, Im thinking about installing an additional graph/gps at the console of my Pantera IV. Ive got a Humminbird in the dash, but would like to add a Lowrance lcx-28 or lcx-38. Have any of yall had success using a RAM mount to install on the handrail? Anything I need to consider if I decide to go this route? What is the biggest unit that can securely be mounted in this manner? Recommended mount? Are there potential interference issues with the transducer that I should worry about and plan around? Thanks in advance for your input. Patrick