I can report that Strength 24, Endurance 20 is insufficient to meditate properly with Grushk! (31 strength, Endurance 13 is also insufficient) This is making me question if these are the appropriate stats, haha.
I have a lot of levels 'banked' in case my high strength is insufficient for something, which is helpful for experimenting. No go, though, so I'm not sure how to succeed (If it's possible at the moment! Maybe we have to learn how to do it somewhere in game?)
And while the rest of the questions I think have been answered below, it is worth noting that Bernard isn't really half werewolf, haha, more of a full werewolf. ^_^