The present invention relates to novel urea-formaldehyde polymers coated with an active ingredient, a method of making the same, and their use. The method has advantages in that high strength and low shrinkage polyester fibers with a uniform fineness and physical properties can be manufactured at high spinning efficiency, without formation of broken filament and curved filament, by preventing formation of a vortex of cooling air with the use of eddy plates directly below a nozzle. The breech housing has at least one side member oriented parallel to the breech bore. These software upgrades may be accomplished without requiring computational resources of the printing apparatus itself and by proper scheduling without impacting customer machine utilization. For at least one said wager option at least one, but not all of the plurality of symbols that define a possible said winning combination are rendered inactive for forming the winning combination.