Yea the Sheetrock will do a bit smoothing out inconsistencies. Especially if you go 5/8ths. Next time make sure you crown all of your studs in a wall the same direction. Modern lumber is garbage. Good practice. Like I said metal studs would work great since they are not structural and straight as an arrow. They make lvl studs too. Super straight. Very expensive. Metal is pretty easy to work with. Reduces moisture wicking in damp basements and easier to frame slab to ceiling when there is inconsistancies