The main thing Skooma does in these mods is, depending on the type, fortify stamina, restore stamina, the drugged effect from sleeping tree sap or redwater Skooma, and slow your natural stamina regen rate for longer than the positive effects.  Double distilled Skooma acts like a more powerful version of skooma with TWICE the WITHDRAWAL :D Drugs are bad mmkay.  Oh yeah, did I forget to mention Skooma will have you feeling fatigued after the effects wear off, don't worry as it won't last too long, but you'd better think carefully before popping it in very prolonged combat encounters, like the civil war.  Good soldiers NEVER do drugs (cue Fortunate Son music).

I plan on updating this with needing proper alchemy skills to cook Skooma properly, after all, in lore its said that made improperly, you can lose your ability to speak, or even DIE :D.  However, this would require a separate version for each perk overhaul, I plan on releasing one for Vanilla and one for Ordinator.  I may make a new version of Skooma that can be made with only the first perk in the alchemy tree but also debuffs your speech for a while.

The recipes version is my FIRST mod that I've ever created objects in (new Form IDs), so do let me know if I crash your game or something.

The non recipes version merely alters the existing Skooma in the world.  (I may add a patch for Nirnweaver Skooma for Realm of Lorkhan users)