Just tried the new HB4 blade in my HB Sport razor. Bad, Bad, Bad. It takes way too much pressure to shave with the HB4 blades. With the Sport HB3 blades or the Atra or Sensor blades I have to use very little pressure. As long as the wheels are touching my head I get a very close shave. Now I'm stuck with $11 worth of blades I can't use. Since Walgreens doesn't carry the HB3 blades anymore I guess it's back to using the Dollar General 2 blade cartridge.
