I will add one additional thing. I use Feather blades exclusively in my AS-D2 on the theory that they were made for each other--a sharp blade in a less aggressive razor. My anecdotal experience has been that a Feather blade will last a pretty decent amount of shaves in this razor--5 to 6 shaves with little drop-off in quality. I can use this combination for shaves without skipping a day--normally I shave every other day but I can shave every day with this combination. For some reason a Feather blade feels different in this razor than it would in other razors.