Data from a 3 panel mosaic taken with a Meade SN-8 telescope back in 2007 was combined with data taken with a Televue TV-85 from 2011. I used Registar and was able to match the data to the base image, which was the 3-panel mosaic.
I like the way it came out and the orientation is in the classic style for M31. Thinking about it further, it might be a good project for me to get even more data and add in everything together to get one deep image. Hmmm…