I recently used my first package of precut strips. This package (just 14 strips, not a full jelly roll), did not have pinked edges. I enjoyed working with them but a couple of the strips had what I considered bad Vs at the center and then quarter folds. Fabric was exact and consistent width, but had been folded on the bolt badly during the manufacturing process. For my project and cuts it wasn't an issue but it was enough to skew a jelly roll race or skimp a seam allowance here and there.
I'm a big believer in pre-washing. I know a lot of you are used to working with unwashed materials but it does add a slight stress level to me.