I had the same problem with my last bow, made from a wild plum sapling. It had about the same reflex and length, but compared to your stave a tad more of the reflex located in the handle. I made it reflex and couldn't brace it until I straightened it.
I ended up with a quite straight bow (about 3/4 inch of reflex), easy to put the string on and still pleasant to shoot with.
I tillered it so that the handle area, which is almost round (just a bit of wood removed from the belly in the handle area), bend less than the rest of the bow (the bend in the handle area is hardly visible).