Starting point.
In the 1st general thread there's a sticky how to for your phone.
Couple tips, read everything 10 times, watch the video multiple times, take notes.
Before installing any Rom, read read read. Make sure you have a complete nandroid backup.
Use twrp version 2.5.0.2 for your recovery, if your to use twrp.
Research and backup and good luck.
Thanks for the reply, I rooted on the MDL version with QBKings method then went back to stock, since then the MF9 update came out and I wanted to see if I was still able to root using the same method!