Is the IFPAPA rules ambiguous one this?
Being allowed to continue play is one thing. But games may award points from the outlane that are conclusive for the outcome of a match.
Any ball that comes to rest in an outlane, where any portion of the ball is below the outlane post, is not deemed a stuck ball. In these instances, players will have the option of attempting to free the ball themselves or to ask a tournament official to place the ball in the drain for them without triggering any additional switches. Please note that when this happens in multiball, in no way will a player be allowed to take advantage of this situation by continuing to play any other balls currently available. The situation of this ball that has come to rest needs to be dealt with immediately by either the player or tournament director. Also, please note that any ball coming to rest on the apron is considered as having come to rest in the outlane and should be treated as such.
A ball which has come to rest on top of a center post, an inlane-outlane post/guide or a lamp insert/playfield divot directly above an outlane will not be considered a stuck ball. Players may choose to free balls resting in these positions through nudging of the machine, or request that an official end the ball in play by manually placing it in the drain for center post incidents, and the outlane for inlane-outlane incidents. If an automatically-triggered kickback exists that will send the ball back into play upon draining it in the appropriate outlane, that feature will be manually triggered, and the ball will be treated as a stuck ball from that point and placed on a flipper or other suitable location. Player-controlled kickback features, such as mini-flippers, posts, or manually-controlled kickbacks that send the ball back into play, do not count toward establishing stuck ball status in this case, and the player will not be permitted to utilize these features or touch the game until the ball has reached the ball trough. If the ball is stuck on any playfield element that is located between the flippers, the ball will be considered a stuck ball if there is no chance of a drain from the ball rolling off of its resting place.