Went today to check out Elite 7 HDI. Didn't seem to be working propably after installing new TD. Set my settings by what a c,c member had set theirs. This didn't work well . different depthfinder , different lake and I had gotten mine all out of shape. Installed new software and that helped even though I could not see how, as it was not listed in the changes pertaining to that software update. I finally got some feeling of accomplishment late in the afternoon after adjusting the TD. It may not have been parralel with the bottom I will probably have to play with settings next time out. This is cutting into my fishing time.........crappie1133