skill, flexibility, & strength...in that order

it's easy to know what to do...
it's doing enough of what needs doing...that's is hard

i too am gunning for 300 yarder drives, 3 out of 5 tees, with 250 yards average. i'm in around 260~275 on my better swings now, with a 44" driver.

my plan:

1. (stretching & strength) lose excess weight: running, cycling, stretching, and moderately dieting
2. (stretching & strength) get to may hapkido (karate) dojang (gym) work out couple of times a week...we do full body stretches, not unlike in yoga
3. (skill) practice my driver swing at home in the back yard with whiffle golf balls and later with golf balls using a big net and also at the driving range and play, once a week through NorCal "winter".
4. (strength) weight gym, once a week or use my home barbells..for fast twitch muscle work out (high fast reps)..the same kind that boxers and kickboxers need, with special attention to abs, lower back and legs. cool off with stretches.
5. (stretching) pilates, yoga, & more stretching at home, when i can.

any endeavor that involves hitting: timing and focus matters quite a bit.