Takes a bit more work....but they still cook just fine.thats the issue with current cast iron, its a stright up sand mold finish, and that leads to stuff building up. i have on old 12” erie cast iron skillet. smooth as glass and cooks great. the newer lodge and other stuff sort of works but definitey lacks the detail that erie/griswold pans had
I've heard of guys taking sanders to them and making them smooth.
I have a few modern lodge pans that slide eggs no problem. I didn't sand them either...had them about 15 years now. You're right, they're less forgiving than the old stuff...but it can still be done.
I think carbon steel is the best choice for new pans though.