Trigger Tech Diamond 2 stage or 1 Stage

Buy them both, sell the one you don't like. No one can really tell you what you will like. I personally prefer 2 stage triggers because I like to stage my finger and having that first stage is nice. When it's cold/wearing gloves, I don't like running a 1lb single stage trigger, where by the time I can feel my finger tip on the trigger it already went off.
 
I realized I don't need a light trigger after I improved my recoil management and fundamentals. Don't want a light trigger. Mine are at least 1.5 pounds or more.

Two stage are nice, but running a "heavy" trigger I don't feel any disadvantage with a single stage. If you run a light trigger, two stage is one more protection from a ND.

Depends on use and preferences.

Agree, get both and sell one.
 
I prefer single stage. When I actually go to pull the trigger, I want the rifle to go off.

I've tried using 2-stage triggers, and I just can't get used to them. I just don't like the feeling of pulling the trigger, then having to pull it more after I realize why it didn't go off when I thought it would.
 
I grew up on 2 stage Lee Enfields. Way more time with a 2 stage. So everything I have, if there’s an aftermarket option, has 2 stage triggers. Just my personal preference. You’ll be better off spending time behind both and deciding for yourself.