I your F.O.C. calculation would determine what weight to use as to brand that is a personal choice. I use Thunderheads, but Muzzy, Montecs all are fine broarheads as are MANY others.

I shoot Thunderheads because they flew best out of my FX and I see no need to change. Your bow, and shooting dicipline may also lead you in one direction or another.

Try several after you find your F.O.C.