being leaned over. boats that run listed (non surf system) run between 7 degrees all the way upto and maybe beyond 18 degrees. My tige Z1 I ran at about 10 degrees, i liked it steep to get tons of push pumping down it plus it was fun for lip tricks beinga ble to do a slight ollie onto the lip and back down (like wakeboarding to me).
the other way is drifted (surfgate, NSS, etc.....) thses boats drive at a slight angle allowing the off/other side water to not come in contact with the surf side water til its past the riding portion of the wake.
listing is done by weighing your surf side rear 100% front 25-50% and offside rear 25-50% giving you that slight lean.
drifting makes for an easier boat to setup but listing makes for a better (IMO) riding wake.