The Ritualist prestige class from the Player Companion: Chronicle of Legends is really cool, as I've been wanting to play an occult ritual-focused character for a while. Its fifth level ability, expedited rituals, reads thusly:
The confusion that I'm having comes from the fact that the level of the ritual is equal to the number of checks required, and the casting time is equal to 10 minutes, or 1 hour, times the ritual level.
If you have to make one skill check per time period, what benefit does the expedited rituals class ability give? Do we just assume that the very last skill check is performed at the very beginning of its 10-minute casting block and you get to shave off those last 10 minutes?