I don't know about those labs, but I think winny is a great drug. Like any other "weak" oral, as long as you're not a fat ass then it should work fine. Ignore the bodybuilders online.
I'm one of those who doesn't have issues with dry joints on Winny, I've done everything from 30 - 100 mg/ED and never had any problem. Oddly enough Masteron gave me temper/ anger issues somewhat akin to what I read about Tren.....I guess it's all individual.