Another great reminder @Tom Saguto . I started this journey about 1.5 ago of golf, love it, great exercise. I've had other post talking about the hip bump "yes or no" "weight forward or no at address", etc.... My searching and asking these type questions is not to question your teaching or even the "S/T" swing. Being a lefty my lead leg is my right leg. That leg has had 3 surgery's over the years, nothing serious, clean up mostly. So I've toyed with no hip bump and no weight forward just to keep the extra pressure off that lead leg.
I found IF I closely follow the "S/T" method, specifically this video, that I experience NO soreness in my lead leg. Key being to bend the leg in it's natural way in a straight manner verses bending the knee in a "inside kinda collapsed motion". So extend your core and bend the knee naturally and you can achieve KFC contact, pain free. I love that sound too.
Thanks,
Tom
Yes, @tom miller - that down/up lead knee action is one of the key components of the body-friendly nature of this swing and is also critical to KFC crispiness, so I'm glad to know that this members-only lesson resonated well with you!
If that knee kicks inward towards the trail side, then beyond any discomfort this may cause it's also an indication that we've taken our backswing beyond its natural stopping point and shifted our swing center/low point backward. That's a certain recipe for inconsistency.