In order to assure you are getting an accurate reading from your meter you must calibrate it to your digital camera.
First take a gray card and attach it to a light stand or something else that can be moved in or out.
Put your camera on a tripod and don't move it, camera settings should be any iso speed 125 and at f8.
Take one studio light and put it directly over the camera and move the gray card in or out till you get a reading on your meter at f8.0.
Once you have done that take a close up photo of just the gray card.
Now take your cf card and put it in your computer and look at the histogram, it should have the peek directly in the center.
If it does then your are calibrated correctly if not and it is to the left it means you are under exposed, now take your graycard light and move it closer to your camera and reshoot.
Again take your cf card and put into your computer and look at the histogram again, if it still is not in the center and to the left you are still underexposed and again move the graycard closer again to the camea. Keep working with it till your spike is right in the middle.
Now if your spike is on the right they you are over exposed, you will have to move your gray card further away from your camera and again reshoot and check it's histogram, keep doing it till the spike is in the center.
Once your histogram is in the center now take your meter and again check it's reading at the gray card. It will show how far your meter is off.
Most meters have a calibration adjustment that you can make, check your owners manual for it's location. Keep adjusting the calibration adjustment till your meter reads f8.0 at your gray card.
It sounds complicated however it is really very simple. You should see a difference immediately in your exposure using you strobe immediately.