Originally Posted by BacteriumFendYoke
Pinstripe heads are directly bonded to each other between the two plies at the edge. That's the difference as far as I'm aware.
Ah, okay. Figures, as I was try to deduct what the filmy look at the edge of mine is. I suppose the reason the Pinstripes sound less muffled than the Powerstrokes is because the plies are bonded like that & resonate as a whole, yet the Powerstrokes are louder and seem more muffled perhaps because their 'second ply' (the dampening ring) is unable to carry vibration across itself like regular heads & isn't glued to the top ply. Ironically, the head with more glue and material has more sustain that the one without.