Lateral Movement & BOSA

‘Lateral Movement’ is better-known as ‘Sway & Slide’ … sway being to the Brace Side and slide being to the Target Side. Lateral is generally detrimental!
Envision a ‘Plumb Blob’ (Clubhead & String or Shaft) moving back and forth from its Fulcrum or Pivot Point. It touches the ground at the very same place every completed trip or cycle.
‘Lateral Spinal Movement’, in either direction, creates a ‘Net Effective Ball Location’ or BOSA anomaly. We all know fully-well what a too far forward or too far aft Ball Location means … THIN! If we make corrective compensations, (Pivot Alterations such as ‘Forward Inclination’ and increased ‘Knee Flex’) the outcome might become FAT. (see ‘Sit Down Tendency’)