What' s your favorite brand of feather fletches, Gateway or Tru Flight?

What size 5" , 5 1/2" ?

Shield cut, parabolic, or banana?

I had a bad batch of Gateway barred 5" shield cut feathers recently. Couldn' t get them to stick to carbons or alum arrows for nothing. Tried different glues and cleaning methods. Switched to Gateway 5" parabolic no problems????? I like the shield cut but what' s up?