I just found this old pic on my PC. this was my faithful tool for LBML before Hex Grid was invented! hehehe who can guess what it is?!
Uhm, looks like a half broken bamboo skewer? Or a jumbo toothpick? Quite a hands-on method you were using. That was your measure stick? Necessity truly is the mother of invention.
Dont know of that toothpick, but I think I used that exact same software tool when I was mining years ago, although I can't recall it's name currently
its LBML, www.mininglog.com after years and years, I am still using it and its awesome! mean while I toss toothpick away