Pellas are too agressive.

The Walgreens blades are all you will need. I have used both in Gems and Everreadys. UK and American versions. 1912 and later. I can truely say stay away from the Pellas. They are meant for sectioning specimens, not shaving. True you could buy an Enders Razor, but the only blades available are for cutting carpet. Would you use those?

The same for Feathers. Sharp as hell, but the company makes surgical supplies so they are too sharp.