on a recent trip to bps for a new depth finder for the rear of my boat i purchased a eagle fishelite 480 w/gps. i didnt honestly intend on getting this model, but they had it on clearance, 100 bucks off, and the supervisor took an extra 5% off if i wanted it, warrenty is just like normal, witch put it right in my price range. I didnt currently have gps so seemed like a no brainer to me. the guy at the counter told me it was a discontinued model, but cabelas still list em and for full price, does any one know if this is a discontinued model or is it just maybe somthing bps is not going to carry any longer? 2nd question is my front/trolling motor depth finder is an older hummingbird tcr id-10, with the gps on my new one i dont know weather to put it on the front or rear of the boat, any suggestions? im leaning towards rear but maybe some one with a little more exp can lean me in the right direction. 3rd is does any one have any tips, tricks, or suggestions for anything w/ gps/depth finder models, and is there a certain length the antenna has to be from the unit?? any info would be great, im pretty new to the whole gps/depth finder deal, im pretty excited about it, but just trying to pick some of your guys brains who may have had em for a while. thanks to all, have a blessed new year and God bless all.