"Poptarting" is a term I like to use when describing how to swing up to the T-finish position after impact. I want you to stand up as fast as possible after making contact with the ball, just like a pop tart pops up out of a toaster when it's done cooking! Using your neck muscles is a good way to do just that.
Check out the video above to see how I helped DJ work on this very part of his swing. He's been able to take it to the course during the first part of the 2015-2016 PGA TOUR season and currently sits 81st in the FedEx Cup standings after only playing two events. He's also 2nd on tour in strokes gained: tee-to-green.
Keep it vertical!