Early release (aka. early extension) is the biggest killer of distance in amateur golf.
Every great ball striker does one thing the same: they hold their speed until impact, not before it.
That's lag. Without it, you're releasing all your speed before the clubface ever reaches the ball, and no amount of extra effort makes up for it.
The PureTempo Lag Trainer gives you an audible click at the exact moment your speed peaks. Click early, you're casting. Click at impact, that's power.
No swing thoughts. No guesswork. Just the click, repeated until it becomes automatic.
Ten minutes a day is enough to start building it in.