WtS,agreed. But over 5 and it wont be good.
Not to be argumentative since I'm a perfectly lovely person, I can only add that a properly clean and lubed trigger is reaaaaalllllly the starting point. My pull triggers are fine at +/-5lbs and anything much lighter is a problem - for me.
Too light a trigger pull is a path to flinching AFAIC.
but shoot what you like
Not sure where you got the above from, but I shot 3 / 3.5 and it proved to be excellent for me. But here is the rub, I did develop the "flinch". I now wonder if you are on the money that a light pull trigger can bugger you up.