My goal was 145" or better this year as well, however, being it my first year living in Idaho and first year hunting Muley's I wasn't quite sure what to look for in a buck. I know my whitetails and that helped out a bit, but when I saw the buck I ended up shooting I figured he would be pretty close.. I was 9" shy. I am still elated to have arrowed a mature mule deer with spot and stalk methods and wouldn't trade him for one 9" bigger. Next year will be here before I know it and I can try again.
About the FMJ's... They are great arrows, I used them for a year back east in Kansas for whitetails and they did phenomenal, however; they can bend because they are aluminum on the outside... That said, if you trip or fall while hiking around and they bend it can ruin your hunt.
I shot my bear and my first muley in Sept with the Kinetics and they are awesome arrows! Pricy, but awesome! Nice and heavy just like the FMJ's but all carbon!
Good luck on your hunt Nick, your going to love this archery stuff! Just don't be that guy taking 70+ yard shots if you can't do it, I met one of those on the mountain this past week and he was bragging about it, then he wounded a deer and did it again the next day, makes me sick.
Good luck!!