I have significant"scoops" and a side gap to the front canopy skin. I decided to clamp the assembly to my work bench and use an "arm" to tweak the apex of the curve. After several iterations, I decided to cease this operation. I got some minor improvement, but shouldn't go too far. Somewhat nerve wracking!
I'll use the crossbar to bend the curve.
Padded and ready for me to lift on the other end to apply force.