I bought some satin finish paint for my walls (Sherwin Super Paint) (for the color I wanted, my only other choice was flat, and I didn't want a flat finish). The problem is that because I used a roller for the big surfaces, and a paint brush for the edge work around casings, it's very easy to notice the sheen difference when the light catches the wall at certain angles.
I thought I had feathered out the paint sufficiently, but that seems to have made it worse. I did the edge work with the brush after the roller work had dried.
What technique should I use to ensure I end up with an even sheen on the wall, even right up to the casing?