Our race area contains numerous moored boats that the fleet often sails thru. These moored boats are at times used tactically under Rule 19.2(a) and (b). As I understand these rules, if a leeward right of way boat (L) can break overlap with a windward boat (W) before reaching the obstruction, then L is no longer required to give W room between her and the obstruction when passing to leeward. This can be accomplished by sailing towards and close to the obstruction, luffing up and then turning sharply downwind shortly before reaching the obstruction. If executed in this manner, it is difficult for W to maintain or reinstate an overlap and W might also be forced to sail to the windward side of the obstruction or tack away to avoid the obstruction.
1) Is the above tactical description sound?
2) Is there a point as L approaches the obstruction where the above tactical maneuver would be viewed as denying W the room that she is entitled under Rule 19.2(b) and if so, how would this point be determined?
3) Any other thoughts on reducing the risk of collision with the moored boats due to the above tactics apart from changing the race area? How about using the SI to modify the definitions (Rule 86.1(b)) of an obstruction and/or room in the context of Rule 19.2 to create a safe zone of say 2? boat lengths?