Did you try inflating it with that slight angle? Not suer what it's could do but just curious. The AiRock kit had these brackets that make the air spring sit a little more level but it still bowed some.
View attachment 665798
When I made my own brackets I have them centered over where the axle sits.
View attachment 665801
I slightly leveled out what the factory brackets were set at, I’ve never done this before, but felt like I should straighten it out at least a little
