What are you sharpening? What do you intend to cut? How fine are your stones?
I finish with green chromium oxide on all my knives. Honestly, the strop compound I use is pretty crappy cheap stuff (a $4 dollar tube of green compound #6 fine metal polish with the red top from Harbor Freight).
It is decent enough to get my edges sharp enough to whittle free hanging hair off my wife's head.
That is all the sharper I need. I am sure, that the compound particle size is much larger than the better more expensive compound. But I just can't seem to use it all up (I have 1/2 of the tube about the size of a nickel roll left). It has lasted me for well over 5 years!
Before anyone can be sure they are giving you the proper advice, they need more information.
If you are sharpening razors, or hard use chopping knives, the answer will be different. (I use the chromium oxide on everything, by the way. Big choppers, small folders, etc).