I may have listed the title wrong but you get the idea. I am looking at the striker 5 and hook2 5 units. They both have dsi and sonar, they both just chartplot with no gps mapping. I have an elite 4 that I am going to run just for mapping beside one of these units. In your opinions which would be better? And just to keep this post in check im not spending over $225 so please dont say " why dont you just get a carbon 12" thx