Had this come up in my weekend game.
Practiced Certainty Feat 1
General
Practice makes perfect. When you spend a hero point, instead of rerolling the die, you can instead add an untyped bonus equal to half your proficiency bonus.
Thoughts?
Daily Punch 2-6-23 Practiced Certainty general feat for Pathfinder 2nd ed
Throat Punch Games 
I Like it because it scales if you become more proficient with your skill. Very nice!