Two to three of each blade was all that I needed. Based on my notes, I've only tried 12 different DE blades leaving the other samplers unused.
With each blade lasting approximately three 4-pass shaves, you ought to discover enough to purchase a 5-pack for the next heat of competition if that floats your boat -- or purchase a 100-pack if confident. I've also tried only 3 SE blade types; a single blade of each gave me sufficient idea, but a second blade sealed the deal since each blade lasts 6-9 shaves.
My notes will provide reference if I stop SE and start DE again.
With each blade lasting approximately three 4-pass shaves, you ought to discover enough to purchase a 5-pack for the next heat of competition if that floats your boat -- or purchase a 100-pack if confident. I've also tried only 3 SE blade types; a single blade of each gave me sufficient idea, but a second blade sealed the deal since each blade lasts 6-9 shaves.
My notes will provide reference if I stop SE and start DE again.