Not too hard to see what the pro-shop is doing, when you look at the price tags of the items they recommend versus the items they don't recommend.

My Cabela's brand FX-3s kill deer just fine. Same with Muzzys. The only way they won't continue to do so is if deer evolve to grow an armored shell around their vitals.

Also, many shops don't want to take the time to assist guys in tuning for good broadhead flight, and many guys can't do it themselves. The Magic Answer is "modern" mechanical heads.