If your IPD is not smaller than 56mm, I have no idea what could cause you to get a "shadow" effect. You might want to go to a sporting goods store and try some out if that measurement is not the answer.
Thanks John, I'll try and do that We lost our good sporting stores around this area, but I'll check around
I finally found a video that actually shows my issue with the shadows. I have get a pair that I can unscrew a bit to distance my eyes from the eyepiece!! Here's the video, and it is all about eye-relief according to this guy If it doesn't start are the right "time", go to .39 and you'll be able to see exactly my issue