Maybe I should qualify my opinion alittle
1) I will not get or cause anyone else to be HURT/INJURED through my actions or inactions
2) I will not cause damage to another persons boat through my actions or inactions.
3) I try not to put myself in situations where someone else defines the undefined rules/measurements ie: how much room is required to round a mark in a seamanly manner... their definition could and mostlikely is different from mine.

The scenerio I see here is not the port boat hitting the starboard boat but the opposite ... The starboard boat coming in too hot ... ON the starboard layline ( or even below - super hot) ... screwing up the rounding ... going 2-3 boatlengths past the mark ... then T-Boning the port tack boat!!!! At the protest hearing saying ... "but I was on Starboard !!!" At our closing speeds someone can be hurt if there is a collision ....

So I sail a little more conservately ... for me winning isn't worth it if someone gets hurt

These are my rules ... I try to keep racing on a FUN level and not get too "amped up".

I also have a voice that if I "hail" someone at the leeward mark people turn around at the windward mark and go "What's Harry yelling about"

Also if you are running the starboard layline w/spin and boats have rounded in front of you and are now beating upwind on port you can have a head on collision if a puff hits and the spin boat drives off the wind ... Now lets say one of the boats beating upwind decided to tack onto starboard ... both are now on the same tack ... most likely the spin boat will not see the boat starting to cross below the them ... now we have an upwind-downwind/same tack scenerio ...

I just see too many dangers/red flags to justify sailing the Starboard layline ... and "pushing" the rules to the extreme. And if you are ON the starboard layline can you really make a proper technical rounding???

Now if you are sailing in a fleet of VERY good sailors and are good enough to douse/round in 1-2 boats lengths .... have at it ... I'm just not that good (Wouter ... Rolf ... Scooby Simon ... Robbie Daniels, all those gentlemen are ... I'm a pragmatist/realist and a mear mortal )

Harry