Is there some trick to using the flour for hummus? Because I use the flour to make ethiopian shiro, like a paste, and the texture seems kind of different. It's excellent food, but not like hummus. (chickpea flour also make spectacular roux/gravy, as mentioned above)
I'd say if you're not happy with your hummus, with whatever bean you use, fool around with your method. I was told by an Israeli (they generally know their hummus) that the key is to grind the beans hot. I like to add water to mine to make it smooth with less oil, so I use
hot water for that too.
You might also want to try a more "rustic" hummus to figure out the taste you want and then evolve from there. This Turkish dish is like a very elemental hummus, and if you like the taste you can just blend it more.
https://vidarbergum.com/recipe/msabbaha-warm-chickpeas-tahini-sauce/
(I love hummus with pretty much whatever bean. And I sometimes use sesame oil rather than tahini, which I think gives a better result)