2 have alot longer reed life. I talk to one guys that has ran the same 2 for 8 years and just starting to chip around the edges. If you can find a new set of 2 for a good price or used ones go for it. But if not just get a set of 3s and it will be fine. It took me forever to find a set of 2s. But it up to you either one will work good.