There is nothing in the current rule-set that specifies how much room the inside boat is permitted. It DOES provide definition for the diameter of the "2 length" circle in which several of the rounding rules come into play - but "room" to round a mark is exactly that with no additional dimension.
That's true, and it was true at the time of the seminar I referenced. However, the interpretation of the applicable rules basically works out that if you're an inside ROW boat (starboard), you can take a tactical rounding.
Still, I haven't heard from any spin boat hotshots whether they would attempt this maneuver in 18+ knots of wind.
Mike
