RE: crimson talon xt (100 or 125 gr??)
It all depends on your setup. You really shouldn't just choose a weight based on preference. It should be on how your setup performs.
How is your dynamic arrow spine? Stiff? Weak?
FOC%?
Speed?
Type of Bow?
You can enter your info into OnTarget2 software and it will help you chooose your broadhead weight. Just google OnTarget2 or Pinwheel software. If you choose to do this, get your bow chrono'd so you have accurate data in your software.
Best of Luck!