I could merge images without any trouble, and the funny thing is that stars all looked pretty good. I checked my collimation with the laser and then the star test using a moderately high power, and the collimation of the scope was spot on. Hmmmmm, put the binoviewer back in and got the offset secondary shadow again, but this time I did notice that in focus some of the brighter stars had a slight flare to them.
Anyway, I had always thought that a miscollimated caused problems with merging images, which didn't happen in this case...So, any of you binoviewer experts, does it sound like my bino needs a trip to TeleVue? Of course, I guess I could always call TeleVue too...