Hi Tim: I didn't have the 7/12 jump (I was 50 y/o at the time & a smoker, so I opted for the T3). In retrospect, I would go for the 7/12 jump, or a cross nerve graft, which is facial nerve to facial nerve. Many people have had great results with the 7/12 - increased tone, & it gets very easy to utilize the tongue to smile, etc.
The T3 is for those with no chance of facial recovery, & can be done at any time after the facial paralysis. With the 7/12 or cross nerve, it's best to do it within 1 year post op. The T3 didn't give me movement back (which the 7/12 or cross nerve can), but when I bite down I get a 'Mona Lisa' smile. This is a great improvement for me since I had a grade 6 Brackman.
I have a before/after picture under Facial Paralysis, the subject is 'Post Temporalis Tendon Transfer' - I can't remember what page it's on but I also have other pictures posted which show my progression over the few years since.
I wish you all the best in your decision. Keep a peaceful heart... Always good thoughts, Nancy