hotsailsmaui superfreaks, standard and ultralight last much longer than monofilm sails. no monofilm creasing either. my 2008 7.0m ultralight has been well used and apart from being a bit grubby, is not even close to wearing out.
they are now doing a line of dacron / xply freerace sails called the speed freak. not an inch of monofilm in sight.