we did some testing with fairly equal large handling and large speed sails and proved that the handling sails give more speed than the speed sails.
under identical weather/wind conditions, on the same ship of the same weight, our mythical 230% max velocity speed sails achieved 11.4 knots
we immediately removed them, and equipped handling sails with about 220% max acceleration and achieved 17.2 knots
the brig was allowed to run straight, for a considerable length of time to allow the ship to achieve full speed on both occasions.
The only reason to use speed sails over handling sails would appear to be "sail turning effectiveness" - which is bizarre since that is a quality you might expect to see on handling sails