I would like some texture help

When ever I edit a texture and save it back as a .iwi file the byte amount in that new file is 4 off than the other. This has happened to me with multible texture and im wondering if anyone has an idea to solve this problem. I know the correct way to save the file because I have successfully created a cammo before

Your doing the hex editing and CRC fixing wrong then. If its just 4 bytes off, its an issue in the hex editing. Insert 4 bytes on the third line, and delete the last four.

Or just use IWIFix posted in the tools thread.

The CRCfixer should make them the same, if you're using the CRCfixer and it still isn't the same, are you adjusting the Hex correctly, ie: copy first two lines from the original and pasting in the new, adding the 4 00 to line 3 and then deleting the last four sets from the end of it. I had the same issue on my first skin, but I wasn't adjusting the hex correctly.