Yea, I found the WOP tracers are very good and not zig zaggy in game. I am fine with straight tracers as long as they use the correct lighting (I am not sure if the tracer round is bright because of heat or fluourescence but it "emits" light so should be bright.
As long as it doesnt look like I am shooting star wars laser beams... But it should be a "streak" not a "bar" although in a ss we dont get a sense of speed so its hard to tell. WOP did a very good job on the trails except they seem to be smoke trails which in reality they arent. Its the bullet compressing / warping the air which creates a "whirl as spotters call it I believe". So when the bullet first leaves the gun there maybe should be slightly darker trail but after that it needs to leave a ripple, imagine with dx11 shooting through smoke or clouds and having the bullets stir it up?