power loss

recently i have loss 15-20 yards off every club and it is driving me crazy. does anyone have any suggestions? thank you.

This sounds very strange to lose yardage in the middle of the season. You must have done something different in your mechanics. Right from the start, make sure your weight transfer is still correct. While transferring your weight to your back foot, make sure you are not 'sliding' back. Your weight needs to stay on the inside of your knee. Also, make sure you transfer your weight to your front leg. It almost sounds like you are doing a 'reverse C' to lose that much power.

thanks. i'll try it. i have had a reverse pivot before but i thought that i fixed it.

it is not from sliding or a reverse. could it be a pre-release during the takeaway? if so, how do i solve it?

Maybe you're not turning your shoulders far enough on the backswing, that can lead to power loss and other problems.

my shoulder turn is good. i am puzzled.

I would check ball position, wrist cock, and left wrist breakdown at impact.
Ball position: too far forward or too far back
Wrist cock: not completing backswing letting wrists cock naturally
Left wrist: just before impact some lose the lag allowing club head to pass the hands
All of these will cause extreme loss of power.
Try taking half swings making sure toe of club is pointing up, then follow through toe of club pointing up.
Try making sure light grip pressure as this will allow wrists freedom to cock and release through the shot
Try pointing butt end of the club ahead on downswing instead of letting club head swing past the hands.
Let me know how these suit you.

your idea of a lighter grip has got some of my yardage back but not all of it. what should the left hand look like at impact? and i wasnt completing my backswing. i still feel like something is missing in my swing.

Depends on neutral or strong grip. Neutral grip, back of left hand facing target at impact.
Strong grip, I prefer to not worry about where the back of left hand will be at impact because I know the face of the club will be square at impact with a strong grip.
Power: make sure you are staying "in the shot" and not pulling up and away at impact.
Personally, I like to watch the back of the ball get struck by the clubface at impact, this keeps me in the shot.
I suspect you are pulling out of the shot by raising up; always remember to keep the body relatively level throughout the swing, no swaying, raisingup, but level through to the finish.

ok.thanks.i suspect that you are right. also, when i hit the ball, it jumps off the club face like it is going to go far but then all of the sudden the ball dies down and lands short. and the power loss is mostly with the irons, not the woods.