[Yoda]

So if I understand correctly the endless belt describes the perfect lag action of a swinger???

The Endless Belt Effect (2-K) describes the increase in Clubhead Surface Speed with no increase in Hand Speed (Belt Speed) during Release. The Effect is the same for both Hitters and Swingers and is exaggerated with a Snap Release (10-24-D/E) and a Line Delivery Path (10-23-A/B/C/D) and minimized with a Sweep Release (10-24-A/B/C) and a Circle Path (10-23-E).

Knowing that this Effect is in operation will keep the player from attempting to 'speed up' the Hands during Release, an ill-advised and almost always ill-fated attempt to increase Clubhead Speed through Impact. Per 6-P-0, it is only necessary to keep the Handspeed 'strong, consistent and Rhythmic.' In other words, Sustain the Lag!