If you want to, you can get a 50 amp transfer switch, which is more robust, and use that to replace the factory transfer switch. You'd only need to use half the switch, which would add a level of redundancy. If it ever failed, you would have a replacement built-in.
Or, you can simply purchase a 30 amp transfer switch, and keep it in a drawer for replacing the factory part, should it fail.
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.