I've come to the conclusion that five days is my limit for a DE blade. I can go past five days without irritation on a blade but the shaves aren't as close as I'd like.
I can get to day five comfortably on Crystals and Personna Med Preps (my current blades of choice).
I can get to day five comfortably on Crystals and Personna Med Preps (my current blades of choice).