It was ETX I am pretty sure and I thought it was the worst of the Brunswick Pro Actives. Not that it was a terrible ball but it was their first one and the later covers had better finish and carry I think. Probably worth $20 but I wouldn't go too much more than that. Very good control piece on tighter shots.
ALL STAR BOWLING & TROPHY
LANGAN'S ALL STAR LANES
IBPSIA MEMBER
WALLED LAKE MI
also I believe the Zone Pro came in several different pin colors. . .
standard issue was a yellow pin
TE1 red pin
TE2 green pin
TE3 orange pin