If you are buying blades for an injector razor, you need injector blades. Schick makes a nice blade in China (affectionately referred to as "Chicks" on this forum). There is also the Schick Proline B-20s.
Yep. Forgive me as I was just being lazy. Seems like there is only 5 blade shoices for this razor. That gives me pause. Maybe the world of SE is different from that of DE but it took me a long time to find a DE combo that worked.