Hints arrived by email today
The cache owner even shared her phone number and said I was welcome to call if I had trouble when I was out on a search. Only problem -- I don't have a cell phone.
So, I'll add those email hints to my cache pages in Cachemate and someday, I'll give those caches another chance to be found by me.
I'm sure when I do see them I'll slap the palm of my hand to my forehead and say, "Doh!"