Unitron hex Eyepiece Holder

I'm not sure I'm calling this by the correct name, but I'm speaking about the attachment that holds 6 eyepieces (1.25")that rotate around a central prism. I have a brand new one of these but it's giving me fits. There appears to be so much "slop" or free play in the rotating section as to render any sort of consistant alignment null and void. To test it I placed a piece of paper over the objective with the center of the lens marked and placed a laser in the eyepiece holder. Rotating the eyepiece holder the laser never returns to the same spot, and the difference in position is quite striking..up to 2-3" of change! I did this test because the first time I tried to use the attachment on my 5" refractor I immediately noticed that the diffraction ring pattern was totally off.

My question.... Is there a solution to this problem? Is my unit just defective? Have any of you noticed a similar problem?

Thanks for any suggestions.

Peter

I know someone who returned theirs to Unitron for repair recently. Unfortunately it didn't look like they did a good job.