I would go to the Python Forum and ask there. That's where all the python gurus hang out. This basically reduces the size of the text file by eliminating the stuff that has a 0 value. Morphs can be really huge and you only need a part of the file. So this strips out the text that you don't need. I do this manually with morphs that I make myself, but I had never tried it on Cr2s. If your figure doesn't have many morphs, then it won't be very big. Morphs can really up the file size. If you're ever afraid of ruining existing files, back them up. It's a good idea to do that frequently anyway. That way if something is messed up, you have the original. And test, test, test before deleting anything.