If you can sharpen straights, sharpening knives will be easy.
All I use on my knives is the Coticule and the BBW...and I sharpen them using the exact same method.
Edge leading on the stone(honing)/Edge trailing on the strop...but I use a solid strop for knives.
I find I don't need anything higher grit than the Coticule and the Strop to get the knives screaming sharp.
A straight is a whole different issue tho...cause you're using it on your skin, on your face,
so gradual steps are really important. But then again, people sharpened straights for a long time with
just the Coticule as well? (notwithstanding the lower grits)
The only thing I see missing is maybe the super fine stone(Japanese natural)...and/or the strops/CrOx paste.
I found sharpening straights really challenging. So much so, that I went back to Bics..
I could never get them sharp enough, to be really comfortable...and I was continually nicking myself, etc.