You ALL are amazing! I love the ideas and advice. Both double-marking and above/below ground are both great ideas. I already keep a spreadsheet with pictureres from the database...that's what clued me in that my markers aren't right. My original markers are on knives (thanks, Becky!) I think I'm going to go Kincaid as well as knife marking front and back and mapping...and basically start all over again. By next year, I bet I can have a lot fewer NOIDs!!