The Short Answer:
Predicting the rate of adaptation is extremely tricky as the answer depends on a multitude of factors. For chronic adaptation to occur, oftentimes real structural changes need to happen to improve both neurological and physiological functions. Not only this, but different individuals will adapt at highly different rates based on age and training history as well as recovery and regeneration habits. Without taking into account all of the different factors, there are a few basic trends we have identified related to the rate of adaptation of Load, Explode, and Drive.
Drive tends to adapt the quickest (2-4 weeks) likely because it is most related to adaptations that coincide with improved force through greater ranges of motion.
Load adapts a little slower (3-6 weeks) likely because it is more related to neural and muscular adaptations of increased strength and force production.
Explode is the most difficult to impact and typically adapts the slowest (6+ weeks) likely because it is related to the expression of explosive strength.
The Long Answer: