Oldest old school board and rig is an 82 Original windsurfer still pull it out occasionally with Dacron 6m Dacron sail and looong booms .
Been sailing my mistral Superlight circa 1984 several times lately - no footstraps, who needs em? Dacron Mylar sails, biggest old school sail I have (Pre monofilm) is a 6.5 wild winds which is still in reasonable condition and good grunt ( for a long board)
oldest new school board is a f2 lightning 94 and a starboard go 2005 170 using a Pryde 8.5 helium sail
newest old school board is a windsurfer LT with tractor pulling 5.7 Mylar sail. Awesome! Try it you'll like it...