I've been dating a girl that did 25 years of Ballett, and I assure you guys, she can jump!
Her squats are pretty good too.
Oh, its so good to be me!
BTW, I'm with Scott. Slow, progressive training. The word is that the Pak Mei training gives your tendons micro damage that constantly heals and repairs, over time building your tendons. Never dissected a Hing Dai before, but it makes sense.
Likewise, movement in one direction followed by explosive power in a different direction loads the tendons.
I think you guys are arguing over 'things you read' not things you did, and everybody is right, its just a matter of scale, speed of progress, and key muscle groups deemed more important by different sport physiologists dedicated to specific sports.