On the flip side, you don't see much for jibs in the a-class.
A lot of people keep quoting this little nugget. We have a very large jib out front called a spinnaker for downwind, the A's only have 14sqm of all up sail ( yes they can run a jib if they want ) and if say 3.5m of that as a jib is being obscured by the main in downwind mode then its best to just have 1 large Main. Randy Smythe revisited the A main / jib recently but found the upwind gains were more than lost downwind.
Another class would be the old F18HT which started life as a main only, most have now been converted to a main / jib setup for the very reasons we are talking about.
