I have no idea what any of this means. But I can tell you PG has one of the most unique flavour I ever tasted. To me, it's unlike any other bud I tried under 20+ years
This became T25 from T28 but I am not sure if I feel any difference, luckily it's pretty much the same terpy spicy bud. So terpy and "dusty" I HAVE TO use the bubbler, messes with the throat throug regular glass, but to me this one worths it.