Which chip & why?

[utigers]

I am coming round to the idea of getting my ps2 slimline modded but I am wondering which chip is best? What difference is the between them anyway?
Also will it damage my laser playing back-ups? Does it depend on the type of disc's you use?

[eakinsme]

yo man.. chipping does damage ur ps2 laser (on slims) if protection is not used.. if ur interested i will pm you with some chips that i can sell you.. i only have matrix infinities in stock but i recomend matrix, crystal or dms4 chips!!

YGPM