The PlaneMate is a relatively new training aid that costs about $160.
Tour Striker PlaneMate - Tour Striker
The Tour Striker PlaneMate is a GAME CHANGER. Order now to make sure you get yours before they’re gone.
Essentially, the PlaneMate helps you do a few things:
Take the club back without rolling it inside.
Get to the top reasonably well on plane.
Lay it down a bit from there.
Pivot through without throwing the clubhead at the ball.
Early returns are good for some, mixed for others. Those with mixed or no results don't seem