I didn't know C&S made Colt's springs...
There must have been a change to the factory springs since I bought this pistol new in 1984. There was a noticable difference when I changed it out with the C&S sear spring.
The Wilson trigger didn't lighten the trigger pull, but the added reach and overtravel screw made it fit me much better. This isn't a range gun and I wasn't after an ultra light trigger pull. However, these modifications made a self defense pistol trigger just a bit better.