DON'T PUT ON TOO MANY.
That spring needs to be there. If you take up too much slack you will stress your cable at WOT.
Try this test. Get someone to put your pedal to the floor. If you can still move your throttle linkage arm (on the throttle body) to open the throttle more, then you need the zip ties. If you CAN'T -- then your throttle is wide open and the zip ties are a COMPLETE WASTE OF TIME, no matter what anyone tells you about "throttle response" and all that crap. If your throttle opens all the way, there is no excess in your cable.