What do you guys think? It comes with a big overclock as it is compared to a reference 960. I don't know if its safe or worth it enough to try and push along further? I see many people doing it with the SSC version. But, not sure on the FTW. Maybe it is tapped out or really close? Well these versions? My ASIC reading is 60.6% according to gpu-z. If I did attempt to oc pushing on further. I would like not having to increase power target or voltage. If that is even possible. I would also imagine I should try in 13MHz increments correct? Since it drops that way with boost when you get to a certain temp.

Theres not a big enough reason that would prevent you from trying to OC it more. The warranty isn't void if you overclock the card or anything like that.

Overclocking is essentially a free performance boost and can up the performance by a few frames. If you'd really want to that is. I've had the bad luck of the draw and quality on mines is 61.1% almost like yours, anything lower than 65.5% can't do a well good OC, but you still can push this card even further to get at least ~3 fps out of it. The only issue you'd have is heat, if you have a well ventilated case or your room temperature is cool making the card cool, than go for it, but if its not, I wouldn't recommend it.
 
Seeing as you don't want to do a voltage and power target increase, you can always use MSI-A or PX16, unlink the power and temp limit, set the priority to temperature throttle and set your temperature throttle value.
 
The downside to overclocking, trial and error as well as time put into it. If you don't want to do that, then stick with stock.
 
The card does a 13 MHz offset for each step, so what you can do is have a Unigine bench going, and increase the core until you see artifacts ( or the card drivers just crashing ) once you've reach that point, clock it down by 2 steps. And run a full bench, or test all of your games. Keep dropping it by 1 step until all of your games play stable with well over an hours worth or so.
 
For the memory, it'll take a longer time to overclock, I'd recommend a limit of +300.
 
Start with going by +25 MHz at a time every 10 minutes of benching, once you start seeing artifacts ( If you haven't reached +300 offset ), drop the memory by -50 MHz. Test every single game you have, if it keeps crashing or you see artifacts, keep dropping the memory by -5 MHz, once you see stability in all games, drop it by another -25 ( to be on the more stable side ).
 
Make sure you keep an eye on your temperature and observe for throttling during any overclock, if you start to see it, then do an overclock on the lowest throttle you see on the core or keep your memory at stock value.
 

If you have a working GTX 980 FTW don't do anything to it. Just be happy