the one in the back might be nice, looks like an old head or dunlop, also a cover for a Bronze Ace. Those are 88 square inches, with a thinner beam than the prostaff, judging by their sound they are made with strong materials. 88 square inch Pro Kennex Bronce Ace:
the headsize of the new prostaff with the headshape and beam width of a vac pro....I have total respect for the playability potential and badass matte finish...