Well, you guys nailed it! It was the rebound spring. I found a package inside the box that had a what I assume is the original, flat ground, rebound spring. When I compared it to the one that was in the gun, it was nearly 1/8" longer. After installing the old spring, my SA Trigger pull is between 3 3/4 and 4 lbs. Much better for me! Thanks for the help!

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Cliff