Kirt, I have been having a poor experience with the freshest data program. I went from one foot contours to 5 foot contours on Leech Lake. I called Navionics and they weren’t able to help me. I filed a discrepancy report and they have yet to solve it. I have been advising folks to not update chip. I have heard from others that are experiencing similar problems with retreating to worse data.
Have you heard this as well?
Sully