The Spitfires are a very sturdy mechanical broadhead and will work fine for hogs with your set up. If you don't like the performance of the Montecs I'd suggest going back to what worked best for you. I too used Spitfires and they never let me down...not once. I've since went on to Montecs myself but I have found them to work very good with good blood trails.

That being said I would not hesitate to shoot my Spitfires again if the mood struck me. (I still have a bunch left over)

Good Luck