I have been shooting NAP thunderheads for years now and have been very very impressed. I am currently shooting an 85 grain head with a 28 inch Gold Tip hunter 5575. I am thinking about trying Muzzys this year, i have been considering it for awhile. I like the looks of the big Trocar tip, looks like it should have some serious penetration. Plus I like the way the blades lock into place. I know muzzy makes a great broadhead but i wonder if i would be making a mistake by changing. What do you guys and ladies think, should i stay with my allready proven thunderheads or see if i like the muzzys better? I will probably go with the 90 grain muzzys. Also should i go 3 blade or 4. My bow is a PSE thunderbolt 1 Cam set on 72 pounds with a whisker bisket carbon.