I also have the Apex spring kit in my SD9VE and brought the trigger pull down to about 6.5lbs.
To improve the pre- and after-travel I put the AET from Apex in and was lucky that I didn't need to trimm it to make it fit, it was a perfect drop in.
Pre-travel was reduced and after-travel was eliminated.
Some had to file off some material off the trigger to make it work and there are a post or two on here that shows how to do it.