Keep at it! It will be worth it. This past weekend, I had to sleep in this vulgar thing called a bed. Between riding in the truck and sitting in a fishing boat all day, my lower back was killing me. I could not wait to get home and spend the night in my WB Traveler. Back pain now all gone.
Even in my Traveler, I like my feet just a bit higher than my head. For the most part, I have not had leg issues. I like to side sleep all curled up. I seem to lay pretty level with great body support and no pressure points.
I think my hang angle is just over 30 degree, but it seems to suit me.
I do like closer to 30 degree or even a bit less than 30 Degree when camping in my WBBB and I like my feet a bit higher (6 or so inches in the BB compared to 3 or so in the Traveler)