When I rooted my droid 3 originally I was playing around with some roms and didn't know how to get back to stock 5.6.890 I followed this process (see link) and use these files:
[Recovery] RSD v5.5.0 and 5.5.184 (aka 5.6.890) fastboot partitions/flashable zip - xda-developers
Now that I am rooted, I am assuming (need confirmation from you smart folks) that I will NOT get 5.7.960 because I am rooted. Therefore, I am wondering if similar files to the above exist so I can manually flash to 5.7.960. Sorry if I am using the wrong terms here. I am a novice at this stuff.