Please note that racing cloth is coated with a hard plastic coating. These coatings will break if the sail is not carefully rolled, like when it is reefed. IMHO a cruising sail is made from heavy duty plain cloth (Dacron) so that it will be able to take some abuse.
Once the coating of a racing sail breaks it not only damages (tears) much easier then a plain Dacron sail but it also looses it shape. For efficient sailing buy new sails and enjoy being able to keep up with the rest of the fleet. Cruising sails aren’t that expensive with the Winter discounts that sail makers currently offer.