Stypic is a good thing, although I prefex the Shavex Block myself, that does the trick much better then the power or stypic pencil. I've never tried a Feather straight, the de's are very smooth to me. I think some of my straights are much sharper then a Feather blade imho. Perhaps its in my head, but coming off of a progression of Naniwas all the way down to .5 diamond film, that sucker will take some skin off if your not very careful. I have to agreed I prefer the real steel over disposables, however there is a use for them when you travel.
Cheers
D