i called navionics and they said they would give me $75.00 for my hot map so i could get a platinum chip for the price of the 09 premium hot maps wich is not bad. but is the HD 3D maps worth it or is it a waist. because i have the 1197si combo and the 3d maps are real detailed on the pics i have seen. so i will proubley give it a try any way.

chuck