Not as obvious as some....but to my eye, hips and shoulders look open at Impact.
Thanks very much for the pictures birdie_man. Perhaps Perry would have sustained the lag longer if his pivot were more active. His hips seem to be open about 10 degrees at impact, this is in stark contrast with almost all guys on tour that hit the ball 290 yards or further.
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"In my experience, if you stay with the essentials you WILL build a repeatable swing undoubtedly. If you can master the Imperatives you have a champion" (Vikram).
The reason you can't sustain the lag is because you are so eager to make the club move fast (a reaction to the intent of "hitting it far"). So on a full shot you throw it away too early, which doesn't happen for your short chip. (bts)