Here is what my ears tell me, die cast hoops focus the sound more and the drum also sounds punchier. Triple flanged hoops give you more spread in sound, a softer
attack and i prefer that. I have played a set of
Pearls that had support hoops as well as die-cast hoops and to my surprise i liked the sound.
I suppose
Gretsch players use those drums for a reason. It erks me that drummers seem to be less involved in their instrument than say guitar players that toil over how many pick up windings each position has, tube versus solid state, Marshall versus Hi-Watt and the list goes on. Drummers buy something to bash on, put a something or other head on the thing and go. Half the time drummers dont even know what they've got for resonant heads

.