This is what I do:
No more than 50% fuel
Full power, about 1/2 way down the runway, I give it two notches of flaps.
At the very end I gently pull back and *just* get it airborne, retract the gear, try to keep it level 100 feet off the ground, and retract flaps, wait for speed to build up, then go to a climb speed (Alt-X) of 135 (.speed 135). Make sure you are at 135 speed before engaging auto-climb.