This is still a problem for me at times. The main thing that helps me in this area is adjusting the back to match the front. What I mean is I print my front out with the same measurements every time (left margin 1.25"; top margin 0.5"), but I rotate my back to the right by 0.4 degrees. These are the measurements that I have to use for my printer. This won't be the same for other printers. I used to have a Lexmark Z42 & it printed the front and back out perfectly. They lined up perfectly, that is. However, the black looked like dark blue, and I couldn't deal with that. Back to my current printer (HP photosmart 1115), sometimes I have to change the left margin measurement of the back to 1.26" or 1.27". But this usually has to be done with ROTJ backs. Not sure why
- they are all 6X9!!! I just can't figure it out. When I have the 2 sheets printed I hold them up to a light to see how much they are off-centered. If they aren't lined up exactly, I turn the back print until it lines up, and I look at the difference in space between the 2 sheets. I hold that picture in my head when I mount them to the cardstock. Usually, it's dead-on. But I just can't understand why my printer does this!
I think I smell a color laser printer in my future.