I keep hearing people talk about their tobacco rotation, but it’s never really explained.
By how many degrees, and how often, should I be turning my tins?

By how many degrees, and how often, should I be turning my tins?
Seasons, whether of the year or day or flights of fancy. I have 100 or more blends and just reach for whatever. YMMV
Ah, not sure where this is coming from. My reply to OP already negates your question. I was simply offering that it varies and some, myself included have no rotation.
Depends on whether the tins are phototropic, or not.
was this a more thorough answer?
Guess sarcasm isn't my first language , no snipe meantBased on the actual question, yes.
Enjoy your day!
Word on the street is that for fear of exactly this scenario is why @JimInks prefers blends with Brazilian tobaccoTried it once and failed.
Entire contents of the pipe bowl fell out the moment I rotated the pipe. In trying to brush it it off, the ember lodged between my left thigh and testicles. Reflex action, I swatted at it, which, as should have been expected, caused a sharp shooting pain in the nether regions. Tried to stand up but tripped on the pipe which had fallen to the floor, which caused a big contusion to my forehead. In my dizzy state I grabbed what I thought was a towel to tamp out the burning ember but it was actually an oily rag in the shop, which bust into flames, engulfing my entire groin area. The insurance company, for some unknown reason, rejected my claim for physiotherapy and reconstructive surgery.
Moral of the story, don't rotate tobacco.
somehow I now get this dark feeling that your last words are going to be "that was seal blood".I suggest following female polar bear's menstrual cycle.
What about during a leap year?