I’m the same way, majority of my shots are 20-25yds max. I get 100% pass through with a 325-ish grain arrow and a 125 grain broad head. I used to shoot a 300fps Barnett Revolution and still 100% pass through. Now using the Barnett XP 400.I will always go with a little heavier then lighter. I use 125 grain broad heads all the time with a 325 grain arrow (450). You will have a little more kinetic energy. I know that speed won't be an issue. My pass through rate is almost 100% but I don't shoot over 40 yards and mostly 15-25yds. I really don't think you notice much difference but what I have that'll you'll need the most - confidence in you're set up! The real benefit though with 100 grn broad heads, availability. GOOD LUCK & HAVE FUN!!