I learned on DE, and when I tried it again, used a feather. Big mistake. Used the same razor (vintage super adjustable) with a Derby from SRD, and was quite impressed. Very smooth, no carnage. The shave lasted long enough for a work day, but about 3-4 hrs shorter than a str8.
Feathers are pretty notorious. I will try them again, sometime, but use a DE only when time doesn't permit a good str8 shave (twice since last June).