.... with learning by keeping the lower body movement out of the swing for beginners. The caveat was that this will give them approx. 80% of their potential power but make it easier to learn to golf.
The body movement and 20% can be added later when he matures .... much later in that case ..... trencher
BTW Peter ..think it was us lefties that encouraged the use of the terms 'lead and trail side' in discussions but we do appreciate you adopting the terms and making your posts much easier for all to follow, hope others take our/your lead