I'll trade you my 2.5" 66-2 with a smooth combat trigger for it.
If it really bothers you, you could put a smooth combat trigger in it.
You could also grind off the serrations but the chrome plating would go too. By replacing the trigger you could also put it back the way it was when you wanted.
I would follow the suggestion of snw19_357. This is a 66-1 that has the serrations ground off the trigger - it makes a world of difference during extended shooting sessions. I still have the original trigger and hammer.