great, i am very fit and also i am very fast. also i plan on playing more competitive matches in the near future.
Yeah I saw your overhead video - you have all the tools to be a top notch pusher. (4.5 level) But I don't think you have the mentality. Like most rec players the urge to just unleash full on winners will be to strong.
It's like in baseball - there is nothing better then swinging with as much might as you can muster and connecting with the ball.
I live for the easy overhead for this reason. Its my favorite shot.

Committing to pushing is a mistake it allows you to rise up a level (or in your case many two or three) from where you would play normally but it hurts your progress in the long run.
(This is REAL pushing - not the made up catergory of pushers that hit like pros but play defensive tennis).