Secondly, any boat that's "snapping off a tack" (never
heard the phrase) is sailing upwind I assume and wouldn't be using the
vang anyway.


I no longer believe that Sloco even races. How far off the wind do you
have to be before it's NOT a tack and is a vang ever used on that point
of sail? Of course you never heard the term as it's used by
professional racers.
Something tells me I'd beat Sloco in a race with just my main up!

RB
35s5
NY