I used the smart strike card on Grenada last week, and this is a picture of one of the areas it told me to fish. We caught 14 keepers in this area that day. Had to do a lot of playing with the chart screens to get to see what I wanted to see, but once I got used to it, and figured out the colors they were looking for, it seemed to have put us on fish. In my mind, the jury is still out on whether I will use this often, but when going to a new lake, this definitely put me in the right area.