That's what I knew as blueberries as well until I was in junior high when my mom bought some rabbit eye blueberries. Its funny, when the rabbit eye blueberries matured and started producing, everyone in the family still thought the huckleberries were better. They are less sweet of course. By the way, the sour nature of that feral stand of rabbit eye blueberries is not at all objectionable to me. The more assertive flavors of the huckleberry and less "improved" rabbit eye blueberries makes for more flavorful cobblers and jams in my opinion. The only downside to huckleberries is that it takes a lot longer to pick them on account of their size.
Today I was reminded that V. elliottii eventually gets quite a bit bigger than V. ashei. There is a huckleberry bush leaning over Winlo Lake (our private 8 acre pond) that is over 15 ft high and spreads a good ten feet out over the lake. I'm guessing that's a very, very old bush. But they do get that big. Unfortunately that bush has never produced very big berries. However it does produce lots and lots of berries every year since it stands next to a source of water and gets plenty of sun. God bless.