Jersey Joe

Hi All... We are looking to purchase a 21' AGP(Zodiac Revelation). I've already kinda settled on a DE filter and the dealer said I can have my choice of Pentair Star 50(ST50) or Hayward EC40. He tells me the Hayward is finger type and the Pentair is grid type. Any thoughts on which I should get would be appreciated. This is a great forum...TIA. JJ P.S. I will probably post this same question on another forum in case you see it out there