Once I get SF unlocked for both, I'll test it out. I think I've got a couple gun levels to go with the FAL to unlock SF. I'm pretty much going to need it to do well with the FAL, because I can't spam the trigger and aim fast enough to do well without it. Now that they buffed the SWAT though, the FAL+SF is probably redundant.
If it's true that we learn from our mistakes, then I should be a frickin' genius by now.