I used to shoot feathers and I agree that they are certainly prettier and more forgiving of fletching contact issues.

I switched primarily for 2 reasons (broadhead control was not one of them).
1) Feathers make more noise when accidentally rubbed aganst something either while stalking in or on stand
2) RAIN!

I know that there are a number of great products out there for waterproofing feathers, however after getting stuck hunting multiple consecutive days in the rain, my feathers, while still standing up, picked up enough water between the barbs that my arrows hit low at 20 yards......really low at 30.....you get the picture.

Since switching I have also identified another real benefit to the blazers. My arrows maintain more downrange energy at distances greater than about 35 yards.
All of the great broadhead steering ability of feathers comes at a price. That price is drag. Inside 35 yards, feathers and blazers hit essentially the same point of impact. Beyond 35, the extra drag of the feathers causes them to bleed off speed faster and thus drop more.