GP100 Spring kit from Wolff
I just changed the hammer and trigger springs in my Ruger. I used the 9#hammer and the 8# trigger. The lightest ones. It only took about 15 minutes and made a huge difference in how it feels. Now to see if it is strong enough to light all my primers. Some loads have small rifle primers so we shall see.
BTW - Wolff had them in my mailbox in about a week.