When people say it doesn't matter, it really doesn't matter.
But I'd go HP because it works on everything with the exeption of a few old school markers, not the quest. A LP works on most high end guns, but you can't really go wroung no matter what with HP.
But I rock a LP, soley because when I bought it they didn't have any HP 68's in, and the hell I'm not compemising for anything other then a 68/45
Paintball is gay.