Listen to this advice. Where you miss doesn't matter. If you miss 225 at your forehead now, in two years you'll miss 275 at more or less the same spot. Range specific assistance work is mostly going to be a distraction.
If you're sure you're getting rooted, getting a hard glute/ab co-contraction, squeezing the bar as hard as you can, making a shelf with your lats, getting your breath right, etc... then maybe consider playing with the TM. Otherwise, there may be a lot of room for improvement just by refining your technique.