I'll let PSYCHO have the final word, but we usually just are fine with the honour system around here on stuff like that. @logoutzero covered some pretty good stuff, but if you want more information than you could ever need, defintieyl give jian's Guide to Untwinked, Single-pass, early game Magic Finding a read. It's written with single-pass (ie tournament-style) play in mind, and he's one of (if not THE) greatest HC Single-pass players to ever grace this forum. People tend to go /p8 (/p3 for act Bosses, to minimize the nodrop chance) for all of normal/NM if the builds can handle it and then whatever /p setting they can stand in Hell (typically /p1 or /p3). The early grind is more than made up for with extra drops/power for Hell. This isn't as much of an issue in this tourney since re-running is allowed, but is probably still a good idea, and is what I'll be doing.