prośba o pomoc w zrozumieniu

Witam,

Czy mogłabym prosić o wytłumaczenie wyrażenia "discretional
weighting technology" 

w produkcji kijów golfowych? Cały fragment brzmi następująco: 

As the head is so
light this allows the John Letters design team to use discretional weighting
technology to optimise performance. The weight has been placed at the heel and
toe of the club to increase the MOI. Heel and toe weighting and the beta titanium face
creates unparalleled face strength and reduces dispersion on off centre
strikes.  The sole benefits from John
Letters innovative “feel cell sole” technology, this technology can take the
strike area of a shot and disperses the strike around the perimeter of the
head. As the strike is dispersed you get a solid feel and great feedback. The
deep face creates low spin for maximised distance. 

Będę bardzo wdzięczna za wszelkie sugestie.

Pozdrawiam,

Laik