this concept is really bad, because i dont know when is next SPECIFIC timed slot with "gemmed" items, this is totally "Sleep Deprivation" by watching and waiting for next changes rotations. when i sleep, and it was up and available, that isnt very nice.
just in my opinion, it is terrible way and all unknown specific shedule when that recipe shows up. i believe this need to be change, No ONE likes random timer rotation or other time sinker that may cause some players to give up in disgusted and frustrated.
Devs, this is suppose to be a game was meant to be enjoy but not waiting for 3-4 weeks to be able to catch that elusive recipe needed. i am tired and exhausted by waiting, no wonder why ESO has better success with master crafting writs and all it takes to find or trade with other players if they have extra recipe copies but it can be expensive, but no need to wait weeks after weeks to get it done.
i would love to see 'advanced noticed" crafting shedule timeframe and to know how soon when i can make one.
PLEASE let stop this sleep deprivation and burnouts. every players loves to see improvements and to have fun and move on to next goal.
as of now, recently, i barely stay awake for 2-3 hrs and sleep on keyboard, sometime i had to let go and sleep on lounger.
but right now, some friend said they could make few, but that would be several days or longer when it shows up. So i can get my sleep pattern back on track.