The Z-100 was coined back in 2009 and, honestly, no one is familiar with this name anymore. Simply stated, Z-100 was the coating applied to the film that was supposed to last longer than comparable coatings by Evans or Remo. Aquarian still uses this longer-lasting coating, but there is no real reference to Z-100 anymore. Aquarian makes very good heads, but there are times when the wide metal hoop can cause fitment problems. -Mark
I guess that's why I couldn't find any on ebay! DOHCool Dude
I do hear good things about Aquarian heads but I'm sticking with Evans for now, so I went with the Evans Clear 200. I just can't do anymore comparison shopping! It's making my hair hurt! Eye Ball