2 cambered narrow luff free-race sails do not take longer to rig
nor do they fill up the luff with water when dropped
not too much more difficult to uphaul or water start
these sails need to be rigged close to specifications or battens can break
(
Ezzy Lion seems popular)
the more difficult ones are the full on race sails ...
heavy when the wind or sail drops
have to uphaul quickly before luff fills and i never managed to water start a big race sail
some people also have issues with cambers flipping to other side - break in time and proper rigging required
also - i always strongly suggest high carbon matching mast and ideally carbon boom
and so, you can see - $$$ and sense required
some say the rigging of race sails is a PITA, but it is NOT really that bad !!
joewindsurfer.blogspot.com/2013/06/rigging-cambered-race-sail.htmlalso:
joewindsurfer.blogspot.ca/2012/09/wide-luff-vs-free-race-sails.html