Does a 4 bladed broadhead help arrow flight or does it slow it down? Which do you prefer?

I have Muzzy 3 blade and 4 blade heads and notice no difference between the way they fly. I hunt with the 4 blade because in my opinion 4 slices are better than 3.

I have always hunted with 3 blades and I have always prefered them. However, I am seriously considering the slick tricks and they only make a 4 blade[:@][:'(][&:] That being said, I have heard report after report of how they fly like field tips and that combined with 5 shot's report of shooting them 5 times through a steel drum, I think I am going to try them anyway. Not to mention where they are made is almost close enough to where I live for me to throw a rock and hit them, which also has it's own appeal. For one I would be supporting a home town business and two if I ever do have problems I can go straight to the factory

I use the Muzzy 100 grain 3-blade and have been really happy with them.

Not always. If 3 people are eating an orange and the orange is cut in 4 pieces, one person will get 2 pieces. If 4 people are eating, then 3 people get slices and one doesn't. You may get bigger slice, it's all about how fast you grab it. But I guess this has to do with broadheads.